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  • 42.80  (17)
  • Springer  (17)
  • PANGAEA
  • 2005-2009
  • 1980-1984  (17)
  • 1980  (17)
Sammlung
Schlagwörter
Verlag/Herausgeber
  • Springer  (17)
  • PANGAEA
Erscheinungszeitraum
  • 2005-2009
  • 1980-1984  (17)
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    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
    Schlagwort(e): 42.65 ; 42.80
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00899704
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  • 2
    Digitale Medien
    Digitale Medien
    Quasi-optics of the group delay of guided magnetic waves (1980)
    Springer
    Applied physics 23 (1980), S. 141-147 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 42.10 ; 85.70 ; 42.80
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00899709
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  • 3
    Digitale Medien
    Digitale Medien
    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
    Schlagwort(e): 42.55 ; 42.80 ; 33
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00914912
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  • 4
    Digitale Medien
    Digitale Medien
    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
    Schlagwort(e): 42.80 ; 61.70 ; 61.80 ; 78.20
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00914916
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  • 5
    Digitale Medien
    Digitale Medien
    Holography with guided optical waves (1980)
    Springer
    Applied physics 21 (1980), S. 55-64 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 42.30 ; 42.80 ; 42.82
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00886483
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  • 6
    Digitale Medien
    Digitale Medien
    Epitaxial growth of ferroelectric PLZT thin film and their optical properties (1980)
    Springer
    Applied physics 21 (1980), S. 339-343 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 42.80 ; 78.20 ; 85.60
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00895925
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  • 7
    Digitale Medien
    Digitale Medien
    Signal statistics of laser light scattering (1980)
    Springer
    Applied physics 21 (1980), S. 369-376 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 05.40 ; 02.50 ; 42.80
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00895929
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  • 8
    Digitale Medien
    Digitale Medien
    Holography with guided optical waves (1980)
    Springer
    Applied physics 22 (1980), S. 161-170 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 42.30 ; 42.80 ; 42.82
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00886000
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  • 9
    Digitale Medien
    Digitale Medien
    Application of pressure-tuned diode lasers to high-resolution spectroscopy (1980)
    Springer
    Applied physics 22 (1980), S. 241-243 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 07.65 ; 42.55 ; 42.80
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00886014
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  • 10
    Digitale Medien
    Digitale Medien
    Time averaging by means of a computer controlled dye-laser spectrometer (1980)
    Springer
    Applied physics 22 (1980), S. 361-364 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 07.65 ; 42.80 ; 42.65
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00901057
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  • 11
    Digitale Medien
    Digitale Medien
    Transient behaviour of pulsed dye lasers (1980)
    Springer
    Applied physics 21 (1980), S. 353-359 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 42.10 ; 42.60 ; 42.80
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00895927
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  • 12
    Digitale Medien
    Digitale Medien
    Towards an ideal photon correlator with a SAW-device (1980)
    Springer
    Applied physics 22 (1980), S. 113-114 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 42.80 ; 85.60 ; 07
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00897943
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  • 13
    Digitale Medien
    Digitale Medien
    Imaging properties and applications of scanning optical microscopes (1980)
    Springer
    Applied physics 22 (1980), S. 119-128 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 42.30 ; 42.80 ; 72.40
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00885994
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  • 14
    Digitale Medien
    Digitale Medien
    Borrmann-like anomalous effects in volume holography (1980)
    Springer
    Applied physics 22 (1980), S. 335-353 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 42.30 ; 42.10 ; 42.80
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00901055
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  • 15
    Digitale Medien
    Digitale Medien
    Brewster window and windowless resonant spectrophones for intracavity operation (1980)
    Springer
    Applied physics 23 (1980), S. 319-326 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 06 ; 07.65 ; 42.80
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00914918
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  • 16
    Digitale Medien
    Digitale Medien
    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
    Schlagwort(e): 35 ; 42.55 ; 42.80
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00900675
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  • 17
    Digitale Medien
    Digitale Medien
    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
    Schlagwort(e): 33 ; 61.40 ; 42.80
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00903218
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