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
  • 1
    Electronic Resource
    Electronic Resource
    Effect of intracavity spatial filtering on the beam characteristics of a copper vapor laser (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 537-538 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Intracavity spatial filtering in a copper vapor laser is demonstrated to achieve low divergence output beam. The output beam characteristics were monitored. The average beam divergence of 0.45 mrad (∼two times the diffraction limit) was achieved. Temporal pulse width of 3-ns full width at half maximum was obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347703
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Hollow cathode plasma assisted chemical vapor deposition of diamond (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 52 (1988), S. 1658-1660 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A method which combines thermal and plasma dissociation of a methane/hydrogen gas mixture for low-pressure chemical vapor deposition of diamond is described. A hot, thin-walled, refractory metal cathode is used to generate a high-current, low-voltage discharge. The substrates are located on the anode and immersed in the plasma emanating from the cathode tip. No auxiliary substrate heating is employed. Polycrystalline diamond particles and films are obtained on silicon (100) and molybdenum substrates at growth rates of 1–3 μm/h.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.99049
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Effects of filament and reactor wall materials in low-pressure chemical vapor deposition synthesis of diamond (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 52 (1988), S. 451-452 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Well-faceted diamond crystals and polycrystalline films have been produced by low-pressure, hot-filament-activated, chemical vapor deposition with the use of methane/ hydrogen gas. The effects on growth and morphology of varying filament and reactor tube materials as well as tube diameter are reported. Tungsten and tantalum filaments, operated under similar conditions, produced diamonds at essentially the same growth rates (typically ∼2 μm/h) and with similar crystallographic properties. Platinum filaments produced only graphitic deposits. Diamond growth and morphology appeared not to be influenced by changing the reactor wall material from fused quartz to Al2O3 or Pyrex or by varying the tube diameter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.99440
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Use of black diamond-like carbon films as a contrast enhancement layer for liquid-crystal displays (1990)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 57 (1990), S. 2288-2290 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report development of single-layer, highly durable, pinhole-free, abrasion-resistant, chemically inert "black coating'' suitable for use as a contrast enhancement layer for liquid- crystal display devices. The single layer is a diamond-like carbon coating that has a high extinction coefficient and appears black due to optical absorption. The optical transmittance is less than 2% over the visible spectrum, and the reflectance is about 20%. Furthermore, this coating is easy to deposit onto large-area substrates at high deposition rates. The coating is sufficiently durable, electrically insulating, and chemically compatible with liquid-crystal display materials. Its hardness exceeds that of SiC (9+ on Mohs scale), and it is resistant to abrasion and most common solvents and acids. It exhibits good adhesion to glass, silicon, metal, and oxide substrates. Films of this material have been used to provide an increased contrast enhancement ratio in liquid-crystal displays. Details on the synthesis of these films are presented. Also, data on the optical and mechanical properties of these films as well as their use as contrast enhancement layers for liquid-crystal displays are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.103890
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Nonlinear optical processes in a polymer waveguide: Grating coupler measurements of electronic and thermal nonlinearities (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 53 (1988), S. 2011-2013 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report here the first clear demonstration of intensity-dependent phase shift due to electronic nonlinearity in a nonlinear polymer waveguide in which propagation distances over 5 cm have been achieved with total attenuation of ∼1.2 cm−1 . Intensity-dependent coupling angle, intensity-dependent coupling efficiency, and limiter action behavior have been observed in the polyamic acid waveguide using grating excitation with 400 fs, 80 ps, and 10 ns pulses. A nonlinear grating coupler analysis identifies the subpicosecond and picosecond processes with electronic nonlinearity, but the dominant effect in the nanosecond experiment is due to thermal nonlinearity derived from weak absorptions. The magnitude and sign of n2 of electronic nonlinearity are measured.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.100325
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Time-of-arrival digital photon correlator (1988)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 59 (1988), S. 2096-2098 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Design and fabrication of the R 6501 microprocessor-based photon correlator, equally applicable to Gaussian as well as non-Gaussian radiation, is described. It works on the principle of directly registering the arrival times of photoelectrons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140036
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    An integrated PC-based characterization system for optical waveguides (1995)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 66 (1995), S. 2690-2694 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: This paper reports an automatic instrument developed for characterization of optical waveguides. A specially designed waveguide excitation unit offers a flexible platform for measurement of optical waveguide characteristics like number of propagating modes, mode field intensity distribution, the refractive index profiles, waveguide geometry, attenuation, and dispersion. Further, the availability of attachments like filters, polarizers, chopper, intensity profiler, and CCD camera make the instrument flexible enough for a variety of other experiments also. The instrument is PC controlled and assisted by user friendly menu-driven software. A large number of waveguides have been analyzed using the setup. These results are also presented in the paper. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1145611
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Large-bore copper vapor laser with a double thyratron pulse modulator (1993)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 64 (1993), S. 314-318 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Use of a double thyratron pulse modulator in a large-bore copper vapor laser is demonstrated. Design of the laser consisting of a discharge tube of 70-mm diameter and 1500-mm length is discussed. The laser gave 55-W output power at 4.8-kHz repetition rate using neon as the buffer gas with 9.1-kW modulator switching of electrical power. The efficiency of the laser was about 0.6%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144250
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Wafer temperature measurements and end-point detection during plasma etching by thermal imaging (1991)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 59 (1991), S. 1299-1301 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Thermal imaging by an infrared television camera has been successfully employed as an in situ method for end-point detection during plasma etching of polycrystalline silicon layers on a SiO2/Si substrate. In addition, it is also shown that thermal imaging can be used for remote sensing of etch rate, heat of reaction, wafer temperature, and for measuring thermal time constants during plasma etching. From these measurements, the heat-transfer coefficient of the thermal contact between the silicon wafer and the water-cooled electrode can be determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.105480
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Sensitive plasma etching endpoint detection using tunable diode laser absorption spectroscopy (1994)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 64 (1994), S. 2779-2781 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report the use of a tunable diode laser locked to a molecular vibrational absorption line as a sensitive plasma etching endpoint detector. Measurements were made on multilayer silicon wafers etched in a SF6 plasma discharge. We show that polycrystalline silicon to silicon dioxide endpoint transitions on wafers with exposed area as small as 33 mm2 should be observable by detecting the etch end product SiF4. The method shows considerable potential as an endpoint detection technique for applications such as contact hole etching wherein very small areas are being etched.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.111468
    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...