ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles  (59)
  • 42.80  (33)
  • 79.20  (26)
  • Springer  (59)
  • Annual Reviews
  • PANGAEA
  • 1980-1984  (59)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (59)
Collection
  • Articles  (59)
Source
Keywords
Publisher
  • Springer  (59)
  • Annual Reviews
  • PANGAEA
Years
Year
Topic
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (59)
  • Physics  (115)
  • 1
    Electronic Resource
    Electronic Resource
    Generation of tunable picosecond light pulses covering the frequency range between 2700 and 32,000 cm−1 (1980)
    Springer
    Applied physics 23 (1980), S. 113-119 
    Details
    ISSN: 1432-0630
    Keywords: 42.65 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The travelling-wave parametric process allows the generation of intense picosecond pulses tunable between 2700 and 17,000 cm−1. Angle- and temperature tuning was investigated using LiNbO3 crystals of different cuts. Various factors determining the bandwidth of the new pulses are evaluated and experimental spectra are presented. Frequency doubling readily leads to light pulses up to 32,000 cm−1. The jitter of two parametric systems operating in parallel is less than 1 ps for pump pulses of 7 ps.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00899704
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Quasi-optics of the group delay of guided magnetic waves (1980)
    Springer
    Applied physics 23 (1980), S. 141-147 
    Details
    ISSN: 1432-0630
    Keywords: 42.10 ; 85.70 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The wave-packet of a magnetic wave on reflection at an interface between a ferrimagnetic medium and free space is shown to undergo no lateral shift but only a time delay. The time delay introduced on reflection is included to obtain a quasi-optical description for the group delay of a magnetic wave guided by a planar slab of ferrimagnet in free space for the case of the magnetizations (a) normal to the surfaces of the slab, and, (b) parallel to the surfaces of the slab and to the direction of propagation. The group delay of the guided magnetic wave is caused partly by the group delay produced in the bulk of the ferrimagnet and partly by the group delay produced on reflections. The characteristics of these two contributions to the resultant group delay of the guided magnetic wave are examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00899709
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    New TEA-lasers based onD′→A′ transitions in halogen monofluoride compounds: ClF (284.4 nm), BrF (354.5 nm), IF (490.8 nm) (1980)
    Springer
    Applied physics 23 (1980), S. 283-287 
    Details
    ISSN: 1432-0630
    Keywords: 42.55 ; 42.80 ; 33
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract As an outcome of a systematic study of excitation kinetics and fluorescence spectra concerning theD′(3π2u )→A′(3π2g ) transitions in homonuclear diatomic halogens and corresponding transitions in interhalogen molecules [1], this paper describes, for the first time, TEA laser action in the three halogen monofluorides ClF, BrF, and IF. Output energies in the mJ range were demonstrated in a fast TEA discharge arrangement at the wavelengths of 284.4, 354.5, and 490.8 nm for ClF, BrF, and IF, respectively. The results suggest parameter scalability and wavelength tunability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00914912
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    The influence of intrisic defects on the degradation and luminescence of GaAs and other III–V compounds (1980)
    Springer
    Applied physics 23 (1980), S. 303-309 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 61.70 ; 61.80 ; 78.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A significant contribution to the degradation of GaAs-based lasers and light-emitting diodes arises from the formation of so-called dark line defects. It is shown that these defects are accumulations of non-radiative recombination centres around dislocations. The centres are identified as As vacancies, which are emitted by climbing dislocations, concomitantly with the absorption of Ga interstitials. From scanning deep-level transient spectroscopy observations it is concluded that the so-called DX centres are Ga interstitials. The driving force for dislocation climb and thus for dark-line-defect formation is a supersaturation of Ga interstitials originating from the growth of the GaAs crystals under Ga-rich conditions as a consequence of the high volatility of As. Phenomena in other III–V compound semiconductors related to the formation of dark line defects in GaAs are also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00914916
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Fundamental absorption edge of evaporated amorphous WO3 films (1981)
    Springer
    Applied physics 24 (1981), S. 55-59 
    Details
    ISSN: 1432-0630
    Keywords: 78.20 ; 42.80 ; 85.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The fundamental absorption edge of evaporated WO3 films is investigated. The optical gap of the virgin film is estimated to be 3.41 eV at room temperature and it decreases with increase of annealing temperature up to 200°C. Annealing at 300°C leads to change in the spectral shape, which is caused by crystallization. For the films annealed at 200°C, temperature coefficient of the optical gap is estimated to be −2×10−4 eV/K and the slope of Urbach's tail is found to be independent of measuring temperature up to 200°C. With electrolytic coloration, shift of the optical gap toward higher energy is observed. Magnitude of this shift is estimated to be 0.05 eV at the color center concentration of 7.5×1021 cm−3 when H+ electrolyte is used. If Li+ electrolyte is used, the magnitude of this shift is about three times larger than in the case of H+ electrolyte. This fact is interpreted by a small change in the host matrix structure owing to the injection of proton or Li+ during coloration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00900398
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Free-running ruby laser annealing of boron implanted silicon (1981)
    Springer
    Applied physics 26 (1981), S. 243-246 
    Details
    ISSN: 1432-0630
    Keywords: 61.80 ; 42.80 ; 85.30
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract An analytical treatment of the thermal phenomena during free-running ruby laser annealing of boron implanted silicon is presented. The heat equation was solved for a simplified shape of the pulse train consisting of a uniform succession of triangular spikes, identical in energy. During one spike the optical and thermal parameters of the sample were taken constant, but for each new spike, new values of these parameters were calculated taking into account their temperature dependence. Such a model predicts the melting of the top surface before the laser pulse has ended, for energy densities higher than 9×104 J/m2. RHEED confirms the presence of recristallization at about the same value of the laser-pulse energy densities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617845
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Laser-induced free-carrier absorption in Si single crystal (1984)
    Springer
    Applied physics 33 (1984), S. 107-111 
    Details
    ISSN: 1432-0630
    Keywords: 72.20 ; 79.20 ; 81
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The transmitted energy density in thin single Si crystal, wafers is measured atλ=1.06 μm as a function of the incident energy density for a Nd laser pulse of 30 ns duration. Non-linear effects begin to become important at about 0.3 J/cm2. The contribution due to free-carriers is separated from the interband one by using measurements made at low energy density and at different sample temperatures in the 20°–150 °C range. The time dependence of the free-carrier concentration and of the lattice temperature is computed for different values of the Auger constant. The experimental data in the 0.2–2.5 J/cm2 energy density range are fitted with an Auger constant of 10−30 cm6s−1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617616
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Time delays in lead-salt semiconductor diode lasers (1984)
    Springer
    Applied physics 33 (1984), S. 181-182 
    Details
    ISSN: 1432-0630
    Keywords: 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Time delays of typically 15–17μ have been measured directly for PbS1−xSex, Pb1−xSnxSe and Pb1−xSnxTe diode lasers at injection levels just above threshold in each case. The corresponding minority carrier lifetimes, as determined using the one-carrier injection model, were typically 2–4μ.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00618753
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Surface channeling of swift light ions (1984)
    Springer
    Applied physics 33 (1984), S. 121-131 
    Details
    ISSN: 1432-0630
    Keywords: 79.20 ; 78.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A fast computer code is developed to provide information about the trajectories of swift light particles incident on crystalline targets under surface channeling conditions. The approximations used in the model are tested by comparison of trajectory calculations with the MARLOWE simulation program. The simulation of experimental energy distributions allows discussing various inelastic energy loss models for the interaction of 150 keV protons with a nickel surface. The results suggest that plasmon excitations are not sufficient to account for the measured energy losses. It is found that the Oen-Robinson formula, including inelastic energy losses by single electron excitations in dense materials reasonably well applies to the reflection of light ions from metallic surfaces in channeling conditions. The measured light intensity emitted from 200 keV He+ reflected ions in various directions close to compact atomic surface rows is compared with the calculated reflection coefficient. The results suggest that most of the particles reflected in ionic state do not penetrate the target surface. Detailed comparison between light emission measurements and calculated reflection intensities, however, requires accurate modelling of the surface topography as well as of the deexcitation mechanisms involved in the surface reflection of light ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617618
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Au gettering by Ne and Ar implantation in silicon (1984)
    Springer
    Applied physics 35 (1984), S. 119-124 
    Details
    ISSN: 1432-0630
    Keywords: 61.70 ; 66 ; 85.30 ; 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The gettering efficiency for Au induced by Ne+ and Ar+ implantation has been studied. The depth distribution of gettered Au as a function of annealing temperature and dose of implanted Ne+ and Ar+ ions are presented. The experiment shows that the maximum efficiency of gettering occurs when the implantation doses are comparable with amorphization dose.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00620641
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 11
    Electronic Resource
    Electronic Resource
    The dielectric constant of PbTe at 4.2 K and $$\tilde v$$ =84.15 cm-1, 96.97cm−1, 103.60cm−1 (1982)
    Springer
    Applied physics 28 (1982), S. 229-233 
    Details
    ISSN: 1432-0630
    Keywords: 77 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The dielectric constant of a PbTe epitaxial layer has been measured by surface wave spectroscopy using an optically pumped far-infrared laser and the technique of attenuated total reflection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00618699
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 12
    Electronic Resource
    Electronic Resource
    A model of sputtering from spikes (1982)
    Springer
    Applied physics 28 (1982), S. 175-178 
    Details
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A simple model of sputtering from spikes is described based upon the solution of a general heat conduction equation for spherical symmetry. The model accounts for many anomalies observed in energy spectra of sputtered atoms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617983
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 13
    Electronic Resource
    Electronic Resource
    Holography with guided optical waves (1980)
    Springer
    Applied physics 21 (1980), S. 55-64 
    Details
    ISSN: 1432-0630
    Keywords: 42.30 ; 42.80 ; 42.82
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Waveguide holograms are recorded in a storage material layer covering a planar dielectric waveguide with a guided mode as reference wave. They are also read-out with a guided mode. In the storage material, assumed to have a lower refractive index than the waveguiding film, the fields of the reference and of the read-out wave are evanescent waves. We describe the preparation of the epoxy resin (Araldit) waveguides on glass substrates, their coating with a dichromated gelatin (DCG) layer as storage material, the processing of the DCG, and the recording and reconstruction techniques. Waveguide holograms of good quality with a size of several square centimeters have been realized for the first time. The holograms were recorded and read-out with wavelength λ=488 nm. They have a length of about 25 mm and a width of 17 mm. To obtain holograms that wide a special prism coupler had to be used which allowed to couple in a laser beam of elliptical cross section, and thus to excite a guided reference or read-out mode with a width of 17 mm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00886483
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 14
    Electronic Resource
    Electronic Resource
    Epitaxial growth of ferroelectric PLZT thin film and their optical properties (1980)
    Springer
    Applied physics 21 (1980), S. 339-343 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 78.20 ; 85.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A series of experiments for growing epitaxial PLZT thin films has been made with rf sputtering. X-ray and electron diffraction analyses confirm that the fabricated films grow epitaxially on SrTiO3 and MgO crystals. A good transparency in the region above 0.4 μm to infrared with good ferroelectric properties is obtained. Propagation loss of He−Ne laser light is less than 6 dB/cm, and the PLZT thin film is a promising candidate for the optical modulator and other functional elements for integrated optics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00895925
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 15
    Electronic Resource
    Electronic Resource
    Signal statistics of laser light scattering (1980)
    Springer
    Applied physics 21 (1980), S. 369-376 
    Details
    ISSN: 1432-0630
    Keywords: 05.40 ; 02.50 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract After a brief survey of number fluctuations, a topic of current interest in light scattering research, the theory is developed for a particular case of this type. A laser beam of Gaussian cross section illuminates a volume in which there is a fluctuating number of identical particles. For incoherent detection the scattered intensities are additive. The interest centers on the statistics of the total scattered intensity. Starting from the moment generating function, the distribution function of scattered intensity is computed using two different methods. In an experiment designed to test the computed distributions, agreement between theory and measurement is found if the mean particle number within the scattering volume exceeds 3. The experimental procedure is described and some difficulties are explained which so far did not permit application of the theory for particle numbers much below 3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00895929
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 16
    Electronic Resource
    Electronic Resource
    Holography with guided optical waves (1980)
    Springer
    Applied physics 22 (1980), S. 161-170 
    Details
    ISSN: 1432-0630
    Keywords: 42.30 ; 42.80 ; 42.82
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract This paper deals with “waveguide holograms” recorded in a layer of storage material covering a planar dielectric waveguide. Reference and read-out waves are guided modes of the waveguide. Their field in the storage medium is evanescent. A theory of the diffraction efficiencies of these waveguide holograms is presented fors-polarized wavefields. To calculate the hologram structure the attenuation of the reference wave caused by absorption in the light-sensitive storage material is taken into account. Analytical expressions for the local and the overall diffraction efficiencies and for the intensity profiles of the diffracted fields are derived. The dependence of these quantities on experimental parameters (the waveguide thickness, the mode numbers of the reference and read-out waves, and the angle of incidence of the plane object wave) is presented graphically, i.e., by computer plots. Grating couplers for integrated optics can be made by waveguide holography. We consider this application to be interesting because incoupling efficiencies for Gaussian beams of up to 96% can be achieved theoretically.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00886000
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 17
    Electronic Resource
    Electronic Resource
    Application of pressure-tuned diode lasers to high-resolution spectroscopy (1980)
    Springer
    Applied physics 22 (1980), S. 241-243 
    Details
    ISSN: 1432-0630
    Keywords: 07.65 ; 42.55 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The application of the high-pressure chamber with a pressure transmitting medium (liquid at room temperature) to diode-laser tuning was found to be a useful method for high-resolution spectroscopy. Ammonia absorbtion spectra in the 10 μm region were recorded with a resolution approaching the Doppler limit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00886014
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 18
    Electronic Resource
    Electronic Resource
    Time averaging by means of a computer controlled dye-laser spectrometer (1980)
    Springer
    Applied physics 22 (1980), S. 361-364 
    Details
    ISSN: 1432-0630
    Keywords: 07.65 ; 42.80 ; 42.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The noise characteristic of available laser sources limits the sensitivity of saturated absorption spectroscopy. Time averaging is one method to improve the signal-to-noise ratio. A computer controlled dye-laser spectrometer is described which has the capability to scan several times any selected frequency range with an absolute accuracy of ±200 kHz. The sensitivity of this system is demonstrated by measuring the isotope shift of the low abundant38Ar and by detecting a weak83Kr-hyperfine component.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00901057
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 19
    Electronic Resource
    Electronic Resource
    On the inelastic-loss approximation for keV-energy ion collisions in solids (1981)
    Springer
    Applied physics 24 (1981), S. 121-126 
    Details
    ISSN: 1432-0630
    Keywords: 61.80 ; 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Inelastic energy-loss in a single collisionT e and related stopping cross-sectionT e based on the Firsov model are evaluated for different screening functions in the elastic interaction potentials. Various approximations ofT e andS e for keV-ions in solids are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00902267
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 20
    Electronic Resource
    Electronic Resource
    Full-automatic broad-band wavelength control of a pulsed dye laser (1981)
    Springer
    Applied physics 24 (1981), S. 331-340 
    Details
    ISSN: 1432-0630
    Keywords: 06.60 ; 42.60 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A full-automatic wavelength controled pulsed dye laser has been developed. With the control system, dye laser oscillations of nanosecond pulses are tuned to any wavelength in the visible or scanned in any sweep mode keeping the nearly transform-limited bandwidth of 0.45 GHz. A mechanical tuning of the wavelength is employed, such that the motion of three wavelength selectors is synchronized to give a smooth and precise wavelength control. The basic principle underlying the tuning scheme, various requirements to be met in system construction, and the practical performance of automatic wavelength control are described in this paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00899731
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 21
    Electronic Resource
    Electronic Resource
    Transient behaviour of pulsed dye lasers (1980)
    Springer
    Applied physics 21 (1980), S. 353-359 
    Details
    ISSN: 1432-0630
    Keywords: 42.10 ; 42.60 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Some aspects of the transient behaviour of pulsed dye lasers are investigated both theoretically and experimentally. Relaxation oscillations induced in the output from a dye cell by an external reflector have been observed and explained, using a rate equation approximation to the physical situation in the dye cell. These oscillations are shown to play an important part in the generation of short laser pulses from long cavity dye lasers. Finally, it is proposed that 10 ps pulses can be obtained from conventional dye lasers pumped by 100 ps pulses from a high-pressure nitrogen laser.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00895927
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 22
    Electronic Resource
    Electronic Resource
    Frequency breakdown in semiconductors (1980)
    Springer
    Applied physics 22 (1980), S. 95-99 
    Details
    ISSN: 1432-0630
    Keywords: 77.20 ; 79.20 ; 85.30
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The effect of the frequency of the applied voltage on the breakdown of semiconductors is investigated. Unlike earlier observations, our experiment yields, in some cases, a breakdown voltage versus frequency curve which is similar in nature to the high-frequency breakdown characteristics in gas devices wherein the breakdown voltage shows a minimum at a certain frequency. A possible theoretical explanation for the above behaviour of semiconductor devices based on dielectric heating is given, which is in fair agreement with the observations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00897939
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 23
    Electronic Resource
    Electronic Resource
    Towards an ideal photon correlator with a SAW-device (1980)
    Springer
    Applied physics 22 (1980), S. 113-114 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 85.60 ; 07
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The advantages and disadvantages of the clipped correlator for photoelectric correlation measurements are analysed. A scheme is suggested by which the problem of inversion (an inherent disadvantage of clipping) is obviated. With the availability of surface acustic wave (SAW) delay lines, we would like to point out that one can make an almost ideal photon correlator.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00897943
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 24
    Electronic Resource
    Electronic Resource
    Imaging properties and applications of scanning optical microscopes (1980)
    Springer
    Applied physics 22 (1980), S. 119-128 
    Details
    ISSN: 1432-0630
    Keywords: 42.30 ; 42.80 ; 72.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract This review paper is concerned with the imaging properties and major uses of scanning optical microscopes. It is shown that the confocal scanning microscope exhibits a form of super-resolution and that the instrument in general has great application in nonlinear microscopy and the inspection of electronic devices.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00885994
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 25
    Electronic Resource
    Electronic Resource
    Sputtering of Cu and Zn atoms from elemental and alloy targets (1980)
    Springer
    Applied physics 23 (1980), S. 89-92 
    Details
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The energy distributions of Cu and Zn atoms sputtered from elements and CuxZn1-x alloys (x=0.80, 0.24) with a 6 keV Ar+ beam have been measured. It was found that the collision-cascade theory properly described the flux of sputtered atoms. From the spectra the binding energies of Cu and Zn atoms in the elemental and alloy surfaces were determined. The collision-cascade theory and the experimentally adjusted values of the binding energies allowed for calculation of the total and partial sputtering yields, and the equilibrium surface composition of the ion bombarded alloys.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00899575
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 26
    Electronic Resource
    Electronic Resource
    Computer simulation of fast recoil ejection from single crystal surfaces (1981)
    Springer
    Applied physics 25 (1981), S. 239-248 
    Details
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The computer simulation program MARLOWE is used to analyze the most probable surface recoil processes leading to ejection of atoms from (001) gold surfaces subsequent to the irradiation with 20 keV argon atoms. The occurence of two-and threedimensional mechanisms resulting from high-energy recoils involving one and two atomic layers is discussed for atoms ejected in a direction parallel to the plane of incidence. Generally, a close correspondence is found between the mechanisms involved and the features in the energy distributions. The occurence of direct and deflected recoils is confirmed, as well as mechanisms involving the generation of displacements in the two first atomic layers. The dependence of these mechanisms on the conditions of incidence and the ejection direction is investigated. It is suggested that three-dimensional effects, although dominating, mainly contribute to the background in the energy distributions. The intensities in the features in the energy distributions were found to be strongly influenced by shadowing; affecting both the one-and two-layer processes. The influence of thermal vibrations, surface defects and impurities is briefly examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00902977
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 27
    Electronic Resource
    Electronic Resource
    Depth of origin of sputtered atoms (1981)
    Springer
    Applied physics 25 (1981), S. 307-310 
    Details
    ISSN: 1432-0630
    Keywords: 79.20 ; 68.55 ; 61.80 ; 34
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Estimates are given for the distribution of the depth of origin of sputtered atoms in the low-fluence limit, as well as the corresponding distribution of atoms sputtered into a given energy interval. The former distribution is well described by an exponential profile, with the characteristic depth being consistent with previous results. The latter distribution is characterized by an energy-dependent depth scale and a shape that varies from exponential at low sputtered-atom energies to inverse-power form at higher energies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00902988
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 28
    Electronic Resource
    Electronic Resource
    High precision wavelength meter with Fabry-Perot optics (1981)
    Springer
    Applied physics 25 (1981), S. 311-316 
    Details
    ISSN: 1432-0630
    Keywords: 07.40 ; 07.60 ; 42.60 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A high precision wavelength meter in the visible is described, which is based on a Fabry-Perot interferometer with several etalons of different resolution. The interference fringe pattern projected on a photo-diode array detector is computationally processed to give a stepwise refinement of the wavelength value to any adjusted accuracy. The present model intends to provide digital and real-time values of high precision wavelength for dye-laser spectroscopy, and to serve as a monitor or as a pilot for wavelength control of a dye-laser source of nanosecond pulses. The model is, therefore, designed with particular emphasis on its short-pulse capability and on-line mode of operation as well as on its high sensitivity and resolution. Some arrangements of essential necessity are involved therein, such as to avoid an errorneous wavelength readout for a noisy incidence of pulsed field. The ultimate accuracy of wavelength measurement is prescribed by the resolving power of the thickest etalon employed. As applied to the pulsed source, the model determines the wavelength to the accuracy of ±one part in 107 for even a single shot nanosecond incidence of a fraction of μJ energy. The design and performance are described in connection to pulsed dye-laser incidence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00902989
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 29
    Electronic Resource
    Electronic Resource
    Trapping and reflection coefficients for3He in Ni at oblique incidence (1983)
    Springer
    Applied physics 31 (1983), S. 37-44 
    Details
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The areal density and the depth distribution of3He trapped in Ni as a function of the bombarding fiuence was measured in the energy range of 1–25 keV and at angles of incidence between 0 and 85° using nuclear reaction analysis. At fluences below saturation a linear relation is found between the areal density and the fiuence. From its slope the trapping and reflection coefficients can be determined. The experimental data for trapping and reflection coefficients and for the depth profiles were compared with computer simulation results from the TRIM program. To reduce uncertainties in the absolute values of the experimental trapping coefficients, they were normalized to the TRIM values at normal incidence. The dependence of the measured reflection coefficient on the angle of incidence between 0 and 80° shows good agreement with the calculated data for incident energies from 3 to 25 keV, but for 1 keV the measured reflection coefficients are higher than the calculated ones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617186
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 30
    Electronic Resource
    Electronic Resource
    Core electron excitation spectra of diamond, graphite, and glassy carbon (1984)
    Springer
    Applied physics 34 (1984), S. 35-39 
    Details
    ISSN: 1432-0630
    Keywords: 79.20 ; 71.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Low-energy electron energy loss spectra in theC(1s) core electron excitation region have been measured in diamond, graphite and glassy carbon in the non-differentiated form. The background subtractedN(E) spectrum has been proved to reflect the density-of-states (DOS) of the conduction band well, and the conduction band structures of these materials have been elucidated. The energy positions of the symmetry points in their conduction bands have been determined from the second-derivative spectra, which were obtained by numerical differentiation of the measuredN(E) spectra.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617572
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 31
    Electronic Resource
    Electronic Resource
    Energy distributions of low energy H ions backscattered from graphite, stainless steel, and molybdenum (1982)
    Springer
    Applied physics 27 (1982), S. 263-268 
    Details
    ISSN: 1432-0630
    Keywords: 61.80 ; 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Energy distributions of H+ and H− backscattered from graphite, stainless steel and molybdenum were measured for low incident beam energies (150∼1500 eV). The energy distributions of H− resembled that of H+, while the intensity ratio of H− to H+ varied from material to material and with the incident proton energy. A peak in the energy distribution moved to the “cutoff” energy with decreasing incident energy, which can be attributed to an increase in nuclear stopping cross section and a decrease in electronic stopping cross section. The ratio of the peak energy to the incident energy is related to the reduced energy ɛ of incident beam independent of target materials in the measured region (0.03〈ɛ〈 3.3).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00619090
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 32
    Electronic Resource
    Electronic Resource
    On the fluence dependence of the sputtering yield for low-energy noble gas ions (1982)
    Springer
    Applied physics 29 (1982), S. 133-139 
    Details
    ISSN: 1432-0630
    Keywords: 79.20 ; 68.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The fluence dependence of the sputtering yield has been studied on amorphous silicon under uhv conditions with 0.5 to 5keV Ar+ using the KARMA technique (Kombinierte Auger/Röntgen Mikro-Analyse). It allows to measure simultaneously the surface composition, the differential sputtering yield, and the total amount of implanted gas. For all energies, the yield increases initially and reaches saturation after the removal of a layer the thickness of which is closely correlated to the ion range. Gas implantation as a cause for these fluence effects can be ruled out by quantitative analysis. The relative yield increase is found to be larger for low energies than for higher ones. Both these findings can be qualitatively explained by a simple damage collection model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617769
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 33
    Electronic Resource
    Electronic Resource
    Energy and spatial redistributions of the particle flux resulting from its interaction with the scattering center (1982)
    Springer
    Applied physics 28 (1982), S. 189-194 
    Details
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Energy and intensity distributions of both projectiles and recoil atoms on the plane behind the scattering center at finite distance are calculated for different projectile-to-target mass ratio and different projectile energies. The projectile energy and intensity have been found to be double-valued or three-valued functions of the distance from the collision epicenter. At the same time, the recoil energy and intensity have proved to single-valued and double-valued functions of the distance from the collision epicenter for parallel and divergent projectile fluxes, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617985
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 34
    Electronic Resource
    Electronic Resource
    Al reaction with SiO2 an auger electron spectroscopy and energy loss spectroscopy study (1982)
    Springer
    Applied physics 28 (1982), S. 247-250 
    Details
    ISSN: 1432-0630
    Keywords: 68.55 ; 73.60 ; 79.20 ; 82.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Evidence for a reaction between aluminium and SiO2 film is presented using Auger electron spectroscopy (AES) and low-energy electron-loss spectroscopy (ELS) techniques. This reaction is studied “in situ” during the manufacture of metal insulator semiconductor devices (MIS), under ultra-high vacuum conditions (UHV). A reduction of the SiO2 film upon aluminization occurs, even at room temperature, giving rise to a complex interface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00618702
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 35
    Electronic Resource
    Electronic Resource
    Brightness enhancement of slow positron beams (1980)
    Springer
    Applied physics 23 (1980), S. 189-191 
    Details
    ISSN: 1432-0630
    Keywords: 78.70 ; 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The brightness of slow positron beams can be enhanced significantly by repeated stages of moderation, acceleration and focusing. Presently available data suggest that the source spot area should decrease by 10−4 after each stage with only a modest loss of intensity. Beams with very small angular divergence, which could be made with this technique, would be useful for characterizing surfaces by positron diffraction and microscopy. Using such beams it is possible to envision the study of new exotic systems such as thee +-e − plasma and the positronium molecule.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00899716
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 36
    Electronic Resource
    Electronic Resource
    Borrmann-like anomalous effects in volume holography (1980)
    Springer
    Applied physics 22 (1980), S. 335-353 
    Details
    ISSN: 1432-0630
    Keywords: 42.30 ; 42.10 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract In this review, a surgey of the evidence for the appearance in volume holography of certain anomalous effects (akin to the Borrmann effect in x-ray crystallography) is conducted, with reference to both experimental observations and theoretical models. The main part of the paper is devoted to the application of a recently-developed two-dimensional coupled-wave theory (an extension of Kogelnik's one-dimensional theory) to the modelling of such anomalous phenomena. Extensive calculations based upon this theory, for the case of Gaussian wave incidence on a uniform mixed grating for various boundary conditions, are presented in a unified two-dimensional description of Borrmann-like effects in volume holography. In particular, certain qualitative predictions of the dynamical theory of x-ray diffraction are expressed quantitatively in the two-dimensional theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00901055
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 37
    Electronic Resource
    Electronic Resource
    Brewster window and windowless resonant spectrophones for intracavity operation (1980)
    Springer
    Applied physics 23 (1980), S. 319-326 
    Details
    ISSN: 1432-0630
    Keywords: 06 ; 07.65 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract We report a new design for an acoustically resonant spectrophone well suited for intracavity operation with widely tunable lasers. Operation with Brewster angle windows or in a windowless mode is possible, and high quality factors (560 and 509, respectively) are achieved. Windowless operation permits continuous monitoring of ambient air. We discuss factors limiting the sensitivity, ∼10−7 cm−1, and present a double chopping scheme capable of significantly reducing the acoustical background encountered in windowless operation. The sensitivity of the spectrophone's performance to misalignment is also examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00914918
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 38
    Electronic Resource
    Electronic Resource
    A search for a thermal spike effect in sputtering (1983)
    Springer
    Applied physics 30 (1983), S. 83-86 
    Details
    ISSN: 1432-0630
    Keywords: 79.20 ; 61.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The temperature dependence of the sputtering yield was measured for lOOkeV per atom bombardment of silver with molecular and atomic antimony ions. No exponential increase of the yield was found in the temperature range from 25° to 775 °C, although a pronounced nonlinear effect is observed when the yield of these projectiles is compared,Y(Sb 2 + )≈ 1.5×[2Y(Sb+)]. We conclude that there is no influence of the lattice temperature on collision spikes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614908
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 39
    Electronic Resource
    Electronic Resource
    Formation of holographic diffraction gratings in photoresist (1981)
    Springer
    Applied physics 26 (1981), S. 143-149 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 42.82
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The exposure-development process for the fabrication of holographic diffraction gratings for integrated optics in the positive photoresist Shipley AZ-1350 is theoretically and experimentally investigated. An analysis of the light intensity distribution is carried out, taking into account the reflectivity at the photoresist-substrate interface and the attenuation in the photoresist for two holographic exposure arrangements. The influence of the exposure energy, the development time for a fixed concentration of the developer and the initial photoresist thickness are described. Various grating profiles are calculated for photoresist films, coated on matched and reflective substrates. Scanning electron micrographs demonstrate very good agreement between the actual and calculated gratings profiles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614748
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 40
    Electronic Resource
    Electronic Resource
    Thresholds for impact ionisation in InSb at 77K (1981)
    Springer
    Applied physics 26 (1981), S. 157-163 
    Details
    ISSN: 1432-0630
    Keywords: 72.20 ; 72.40 ; 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The thresholds in energy for 5 different impact ionisation processes in InSb at 77K were calculated on the basis of a critical review of the available bandstructure data for largerk values. An accurate threshold value of 243 meV ± a few meV is given for the main process. It is shown that production of light holes by impact ionisation is highly improbable. It is suggested that double ionisation and light hole initiated ionisation may be equally important in interpreting quantum efficiency data. Impact ionisation by L-band electrons may contribute significantly to the avalanche in Gunn domains, explaining the rapid quenching of the latter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614750
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 41
    Electronic Resource
    Electronic Resource
    Effects of a magnetic field on the optical properties of dielectric mirrors (1983)
    Springer
    Applied physics 32 (1983), S. 63-67 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 78.20 ; 78.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract We have measured the changes in the polarization state of a monochromatic (λ=514.5 nm) light beam on reflection at normal incidence by a multilayer dielectric mirror placed in a time-modulated magnetic field. The dominant effect is a Faraday rotationΦ≃3.7×10−10 rad/G. The sensitivity (around 40Hz) obtained is $$ \simeq 6 \times 10^{ - 9} {\text{ rad/}}\sqrt {{\text{Hz}}} $$ which is dominated by the shot-noise limit (100 mW of light power).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617830
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 42
    Electronic Resource
    Electronic Resource
    Refractive index profiles of LiNbO3: Ti waveguides (1983)
    Springer
    Applied physics 32 (1983), S. 125-127 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 66.30 ; 85.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Eight LiNbO3: Ti waveguides have been fabricated under differing conditions. The effective refractive indices of guided modes have been measured and successfully fitted to Gaussian index profiles. The change of refractive index and titanium concentration are related by a power law, the exponents being different for the extraordinary and the ordinary beam.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00616607
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 43
    Electronic Resource
    Electronic Resource
    Photoconducting tellurium for submillimeterwave detectors (1982)
    Springer
    Applied physics 27 (1982), S. 35-38 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 72.40 ; 78.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Undoped tellurium single crystals show at low temperatures (2.2 K) strong photoeffect under submillimeter irradiation. Therefore, tellurium was used as a FIR-detector. For a comparison with other detectors signal-to-noise ratio, response time, and noise equivalent power were determined. Tests were carried out with HCN-laser radiation (λ = 337 μm,≈ν = 30 cm- t). The sensitivity of the Tc-photoconductor is comparable to that of a TGS-bolometer but lower than that of a Ge-bolometer. The Te-detector is much faster than the bolometers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01197544
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 44
    Electronic Resource
    Electronic Resource
    Trapping and reflection coefficients for deuterium in graphite at oblique incidence (1984)
    Springer
    Applied physics 33 (1984), S. 265-268 
    Details
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Trapping and particle reflection coefficients for 0.4–10keVD on graphite have been measured for angles of incidence 0≦α≦85° by determining the areal density of implanted D as a function of the implanted fluence. The experimental data are compared to computer calculations with the TRIM-program. The agreement between measurement and calculation is good.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614669
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 45
    Electronic Resource
    Electronic Resource
    Depth profiling by ion-beam spectrometry (1982)
    Springer
    Applied physics 27 (1982), S. 183-195 
    Details
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A procedure is developed for determining the stoichiometry of a sample as function of depth from ion-beam analysis energy spectra. The approach is in principle equally applicable to back scattering experiments, experiments involving nuclear reactions with known cross sections and experiments combining these techniques. The procedure is especially suitable for routine computer evaluation of energy spectra. It is more straightforward and/or involves less rigid assumptions and approximations than alternative approaches. If all elemental signals are measured, an accurate beam dose is not needed. The limitations are basically those inherent to ion beam analysis in general.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00619079
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 46
    Electronic Resource
    Electronic Resource
    On the velocity distribution of excited Fe-atoms by sputtering of iron (1982)
    Springer
    Applied physics 29 (1982), S. 53-55 
    Details
    ISSN: 1432-0630
    Keywords: 79.20 ; 32.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract From the velocity distribution of excited sputtered particles detailed information on the excitation process can be obtained. In the present paper the first direct measurement of velocity distribution of excited atoms sputtered from a metal target is presented. The irradiation of the Fe-target was performed with 10keV Ar+-ions. The sputtered atoms were detected using pulsed laser induced fluorescence (LIF). The sputtered Fe atoms in the metastable statea 5 F 5 at 0.86 eV shows a much broader distribution, than found for the ground-state atoms, but no energy threshold, implied in the statistical excitation models, was found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00632425
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 47
    Electronic Resource
    Electronic Resource
    A study of electronic states near the interface in ferroelectric-semiconductor heterojunction prepared by rf sputtering of PbTiO3 (1982)
    Springer
    Applied physics 28 (1982), S. 161-166 
    Details
    ISSN: 1432-0630
    Keywords: 73.20 ; 73.40 ; 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Interface states in the ferroelectric-semiconductor junction have been investigated from analyses of DLTS andC-V data. Two trap levels are located at 0.21 and 0.36 eV below the conduction band near the silicon side of the interface in the MFS (Metal-Ferroelectric-Semiconductor) structure. The interface states density has been drastically reduced by putting an oxide layer between ferroelectric and semiconductor with certain heat treatment in H2 atmosphere at 500 °C. It has been found that the MFMOS (Metal-Ferroelectric-Metal-Oxide-Semiconductor) structure shows the least interface states density (less than 1011cm−2eV−1) with the maximal dielectric constant of PbTiO3 thin films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617981
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 48
    Electronic Resource
    Electronic Resource
    Distribution and heat-treatment migration studies of Cr implanted GaAs by SIMS (1980)
    Springer
    Applied physics 23 (1980), S. 21-24 
    Details
    ISSN: 1432-0630
    Keywords: 65 ; 68 ; 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Depth profiles of 190 keV Cr implanted-GaAs have been measured by SIMS analysis. The as-implanted Cr profiles are approximately Gaussian with good agreement between theory and experiment on the projected range. A fast migration of Cr is observed after heat treatment under encapsulation, and even as soon as the silicon nitride film is deposited. There is no evidence for Cr precipitation, even in the case of the largest implanted dose (1015 cm−2).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00899565
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 49
    Electronic Resource
    Electronic Resource
    Experimental method for the measurement of hyperfine transition saturation intensities in a gaseous medium (1980)
    Springer
    Applied physics 21 (1980), S. 135-140 
    Details
    ISSN: 1432-0630
    Keywords: 35 ; 42.55 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A saturated absorption technique, using an actively stabilized cw dye laser has been developed to measure the saturation intensities of hyperfine transitions in a gaseous medium. Hyperfine lines belonging to theB-X system of molecular iodine have been investigated. The experimental method proposed, provides a means for measurement of the absolute value of the saturation parameter of the transition with an accuracy better than 10%. The behavior of the saturation intensity of some transitions with iodine pressure has been investigated in the range 30 m Torr→90mTorr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00900675
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 50
    Electronic Resource
    Electronic Resource
    Investigations of near region of surface of soda-lime-silica glass and lithium-silica glass with secondary ion mass spectrometry (1980)
    Springer
    Applied physics 22 (1980), S. 233-236 
    Details
    ISSN: 1432-0630
    Keywords: 79.20 ; 81
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Investigations on the layers near the surface of different glasses by means of secondary ion mass spectrometry are described. Both enrichment- and depletion zones can be demonstrated. The results are discussed on the basis of the model on corrosion behaviour by Hench.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00886012
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 51
    Electronic Resource
    Electronic Resource
    Influence of the solvent matrix on the overlapping of the absorption and emission bands of solute fluorescent dyes (1980)
    Springer
    Applied physics 23 (1980), S. 369-372 
    Details
    ISSN: 1432-0630
    Keywords: 33 ; 61.40 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract It has been observed that the separation between the absorption and the emission bands of a fluorescent dye is smaller in a rigid polymer matrix than in the liquid monomer. Low temperature measurements have been carried out in order to understand this phenomena. It has been found, that the molecular mobility of the matrix, in which the dye is dissolved, plays an important role. By doping the rigid matrix with molecules of high mobility, the separation between the absorption and emission bands can be increased. A nearly complete separation can be achieved by this doping method if the difference of the dipole moments in the ground and excited states of the dye molecules is very large. This allows, for example, to increase the brightness of the fluorescence-activated liquid-crystal display (FLAD) and the efficiency of solar collectors based on fluorescent dyes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00903218
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 52
    Electronic Resource
    Electronic Resource
    Laser amplification in an optical fiber by evanescent field coupling (1981)
    Springer
    Applied physics 24 (1981), S. 201-203 
    Details
    ISSN: 1432-0630
    Keywords: 42.10 ; 42.80 ; 42.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A laser signal propagating in an optical fiber is amplified by the evanescent field interacting with the excited Rhodamine 6 G solution surrounding the fiber. A small signal gain of 430 at 600 nm has been measured in a long fiber with a 2 cm long fiber optic amplifier.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00899756
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 53
    Electronic Resource
    Electronic Resource
    Optical properties determination at 10.6 μm of thin semiconducting layers (1983)
    Springer
    Applied physics 30 (1983), S. 23-26 
    Details
    ISSN: 1432-0630
    Keywords: 07.60 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract An optical characterization of thin semiconducting multilayers in the infrared range, using a combination ofm-lines and reflection spectroscopy techniques is exposed. Such a method, non-destructive, allows to determine the thickness and the refractive index of each component of a multilayer multimodal planar waveguide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617709
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 54
    Electronic Resource
    Electronic Resource
    Measuring the Magnetooptic Kerr effect by diffraction (1983)
    Springer
    Applied physics 31 (1983), S. 59-63 
    Details
    ISSN: 1432-0630
    Keywords: 78.20 L ; 42.80 ; 75.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A method is presented to measure the Magnetooptic Kerr Effect (MOKE) by diffraction. This is accomplished by giving the magnetized surface a magnetization distribution which functions like a linear diffraction grating. It is shown that the first and higher orders of the light diffracted by such a grating are produced by MOKE whereas the zero order approximately represents the reflectivity of the surface (given by the Fresnel formulae assuming zero magnetization). The procedure used here to form a grating is restricted to thin soft magnetic films, and has been demonstrated on evaporated Fe-Ni films. It uses the magnetic field of a pulse-driven meandered stripe-conductor placed in close contact with the film in the presence of a homogeneous external magnetic field. Experimentally determined Kerr intensities were compared with those measured by ellipsometric methods. Good agreement was found in the case of films with uniaxial anisotropy. For films with no anisotropy, the relative dependence of Kerr intensity vs wavelength, polarisation and angle of incidence could be derived.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00616305
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 55
    Electronic Resource
    Electronic Resource
    The velocity distribution of sputtered Zr atoms for irradiation at normal and oblique angle of incidence (1984)
    Springer
    Applied physics 33 (1984), S. 235-241 
    Details
    ISSN: 1432-0630
    Keywords: 79.20 ; 32.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Laser-induced fluorescence by means of a cw dye laser has been used for investigating the velocity distribution of sputtered Zr atoms in the ground state. In order to evaluate the data the excitation probability of the atoms in the observation volume has been measured. The velocity distribution of Zr atoms for irradiation with Ar+-ions as well as light ions at normal and oblique angle (70°) of incidence is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614664
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 56
    Electronic Resource
    Electronic Resource
    Optical method for measuring the coupling constant of surface acoustic waves (1982)
    Springer
    Applied physics 27 (1982), S. 95-97 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 62
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The coupling constant of common or thin-layered-piezoelectric interdigital transducers for surface acoustic waves up to the highest frequencies can be determined in an optical way with reproducibility better than 3%. Being a nondestructive and noncontact method one can apply it in the technological process for fabricating uniform piezoelectric layered transducers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00615811
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 57
    Electronic Resource
    Electronic Resource
    Space-time resolved reflectivity measurements of picosecond laser-pulse induced phase transitions in (111) silicon surface layers (1982)
    Springer
    Applied physics 27 (1982), S. 153-160 
    Details
    ISSN: 1432-0630
    Keywords: 78.20 ; 81 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The changes in reflectivity of a silicon surface, irradiated by a green picosecond pulse, are probed during and following that pulse with a spatial resolution of 10 μm. The data indicate the development of a liquid phase, and a resolidification either into a single crystal or an amorphous phase. The latter has a characteristic ring-type pattern, and occurs only at locations where the incident picosecond laser fluence lies between 0.2 and 0.26 J/cm2. The reflectivity data appear to be in good quantitative agreement with a “simple heating” model, in which the electrons and phonons maintain a local thermodynamic equilibrium on a picosecond time scale.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00616666
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 58
    Electronic Resource
    Electronic Resource
    A semiempirical formula describing the recoil yield in silicon (1984)
    Springer
    Applied physics 35 (1984), S. 161-167 
    Details
    ISSN: 1432-0630
    Keywords: 34 ; 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Krypton ions in the energy range 20–300 keV are used to generate recoiling atoms in silicon from thin layers evaporated on its surface. The recoil yields and the impurity distributions in the substrate have been measured as a function of several parameters (energy, thickness of the layer, incident dose). The results are used to propose a new formulation of the recoil yield based on the possibility, for both projectiles and recoiling atoms, to remove impurities previously introduced in silicon. The calculation fits very well the experimental results using displacement energies close to the generally admitted values
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00616970
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 59
    Electronic Resource
    Electronic Resource
    Radiation sensitivity of thick core all-glass fibers in reactor radiation fields (1982)
    Springer
    Applied physics 28 (1982), S. 45-51 
    Details
    ISSN: 1432-0630
    Keywords: 42.10 ; 42.80 ; 78.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Radiation induced losses and the recovery behavior of several optical fibers have been determined by in situ steady state and by pulse measurements in a nuclear reactor. Agreement with the literature was found for Suprasil and Fibropsil core fibers in ionizing radiation, but our results on Suprasil-W core fibers show an appreciably higher radiation hardness of this material than reported elsewhere. Additionally, increased long term losses were observed, when the mixed radiation flux contained a noticeable content of neutrons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617781
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...