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      • Department of Electrical and Electronics Engineering
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      Numerical analysis and synthesis of 2D quasi-optical reflectors and beam waveguides based on an integral-equation approach with Nystrom’s discretization

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      Author(s)
      Nosich, A. A.
      Gandel, Y. V.
      Magath, T.
      Altintas, A.
      Date
      2007-09
      Source Title
      Optical Society of America. Journal A: Optics, Image Science, and Vision
      Print ISSN
      1084-7529
      Electronic ISSN
      1520-8532
      Publisher
      Optical Society of America
      Volume
      24
      Issue
      9
      Pages
      2831 - 2836
      Language
      English
      Type
      Article
      Item Usage Stats
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      171
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      Abstract
      Considered is the beam wave guidance and scattering by 2D quasi-optical reflectors modeling the components of beam waveguides. The incident field is taken as the complex-source-point field to simulate a finite-width beam generated by a small-aperture source. A numerical solution is obtained from the coupled singular integral equations (SIEs) for the surface currents on reflectors, discretized by using the recently introduced Nystrom-type quadrature formulas. This analysis is applied to study what effect the edge illumination has on the performance of a chain of confocal elliptic reflectors. We also develop a semianalytical approach for shaped reflector synthesis after a prescribed near-field pattern. Here a new point is the use of auxiliary SIEs of the same type as in the scattering analysis problem, however, for the gradient of the objective function. Sample results are presented for the synthesis of a reflector-type beam splitter.
      Permalink
      http://hdl.handle.net/11693/13316
      Published Version (Please cite this version)
      https://doi.org/10.1364/JOSAA.24.002831
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      • Department of Electrical and Electronics Engineering 3863
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