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  • 42.80
  • Springer  (5)
  • Annual Reviews
  • Elsevier
  • 1975-1979  (5)
Collection
Keywords
Publisher
  • Springer  (5)
  • Annual Reviews
  • Elsevier
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    On the theory and solar application of inductive grids (1977)
    Springer
    Applied physics 14 (1977), S. 1-20 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 78.20 ; 41
    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 brief description is given of the rigorous formulism of Chen, which describes the diffraction by perfectly-conducting inductive grids. The formulism is used to prove several general properties of grids, including the relevant form of the Reciprocity Theorem. The theory is used to investigate the equivalent circuit model proposed by other authors for thin grids, and also to derive a monomodal model of the type first proposed by Chen. The latter model is shown to be useful even in the region where more than one spectral order propagates. The accuracy of the formulism is established by the comparison of calculated results with a number of far-infrared measurements on grids. The use of grids as solar-selective elements is investigated. They are shown to be capable of providinga/e ratios of the order of 30–40, provided that they are always pointed towards the sun, and that the diffuse content of the illumination is low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00882627
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  • 2
    Electronic Resource
    Electronic Resource
    Crossed gratings: A theory and its applications (1979)
    Springer
    Applied physics 18 (1979), S. 39-52 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 78.20 ; 41
    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 introduce a rigorous formulation for the problem of the diffraction by a finitely-conducting, bi-periodic surface. The formationon is based on a coordinate transformation which maps the grating surface onto a plane. The transformed Maxwell equations are resolved using an iterative technique. The numerical implementation is tested against a number of criteria, including a comparison with two recently developed formalisms. As well, it is shown to give results in agreement with the Reciprocity Theorem, which is derived for efficiencies of crossed gratings in unpolarized light. The method has been shown to work throughout the whole range of values of surface conductivity. We investigate the effect of a surface-corrugation on the solar absorptance of a metallic mirror. We discuss a useful equivalence property linking the behaviour of crossed gratings with that of classical gratings. We exhibit for the first time a grating in a highly-reflecting metal capable of totally absorbing unpolarized incident light.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00935902
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  • 3
    Electronic Resource
    Electronic Resource
    Beugungstheoretische Behandlung eines Differentialinterferometers für ausgedehnte Phasenobjekte (1976)
    Springer
    Applied physics 11 (1976), S. 241-246 
    Details
    ISSN: 1432-0630
    Keywords: 42.30 ; 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 diffraction theory of image construction has been used, in the case of a differential interferometer employing a Wollaston prism, to derive the position of the interference fringes in dependence upon the phase object and the prism position. This procedure is not only more correct, but proves also to be simpler than the corresponding geometric-optical treatment. An example is presented in which the fringe shift resulting from a symmetrical gas flow has been used to evaluate the gradient of the optical path perpendicular to the rotational axis of symmetry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00897059
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  • 4
    Electronic Resource
    Electronic Resource
    Polarization selective optical heterodyne detection for dramatically improved sensitivity in laser spectroscopy (1979)
    Springer
    Applied physics 19 (1979), S. 1-17 
    Details
    ISSN: 1432-0630
    Keywords: 07.65 ; 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 noise characteristic of available laser sources limits the sensitivity of many types of nonlinear spectroscopy. We show how to maximize the sensitivity by optimizing the strength of a local oscillator wave in a heterodyne detection scheme without altering the amplitude of the wave being detected. The intensity profile of the optimum local oscillator closely matches that of the incident probe wave, but the optimum intensity is much less than that of the probe under realistic conditions. A general signal-to-noise analysis applicable to all nonlinear spectroscopy techniques is presented along with specific applications to coherent Raman spectroscopy, two-photon absorption, saturation spectroscopy, and optical coherent transient techniques. A simple optimization procedure employing polarization selection rules is described. Detailed calculations are performed for the case of TEM00 waves interacting via a third-order nonlinear susceptibility and for the case where the sample is simultaneously probed at many different frequency combinations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00900531
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  • 5
    Electronic Resource
    Electronic Resource
    Low-loss rotator and application for isolator design (1977)
    Springer
    Applied physics 13 (1977), S. 307-309 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 85.60 ; 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 The Faraday rotation associated with the Zeeman effect in gases is used to rotate the plane or polarization of plane polarized light with low loss of intensity. Advantage is taken of the rapid decrease of absorption relative to Faraday rotation between the split Zeeman components. Calculations of this Faraday rotation are applied to obtain design parameters for an isolator for 5.26 μm which show a significant improvement over conventional designs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00882898
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