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  • 81.40  (1)
  • ELECTRONIC EQUIPMENT  (1)
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  • 1
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    Unknown
    In:  Other Sources
    Publication Date: 2019-06-27
    Description: Antenna properties of optical heterodyne receivers
    Keywords: ELECTRONIC EQUIPMENT
    Type: STUDY OF LASER FREQ. STABILITY AND SPECTRAL PURITY MAY 1969 (SEE N69-34851 20-16)
    Format: text
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 32 (1983), S. 135-140 
    ISSN: 1432-0630
    Keywords: 42.65 ; 64.60 ; 78.90 ; 81.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract We report the observation and analysis of higher-order optical diffraction patterns arising from linear combinations of the primary laser-induced gratings or ripples on germanium surfaces. These higher-order surface structures presumably arise from nonlinear interactions between superimposed primary gratings with different grating wave vectors. For gratings produced by normally incident laser beams on Ge 〈111〉 surfaces, the diffraction patterns exhibit a strongly hexagonal symmetry.
    Type of Medium: Electronic Resource
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