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      Multifrequency spatial filtering: a general property of two-dimensional photonic crystals

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      Author(s)
      Serebryannikov, A. E.
      Colak, E.
      Petrov, A.
      Usik, P. V.
      Özbay, Ekmel
      Date
      2016
      Source Title
      Photonics and Nanostructures - Fundamentals and Applications
      Print ISSN
      1569-4410
      Publisher
      Elsevier
      Volume
      18
      Pages
      1 - 9
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      Spatial filtering, an analog of frequency-domain filtering that can be obtained in the incidence angle domain at a fixed frequency is studied in the transmission mode for slabs of two-dimensional rod-type photonic crystals. In the present paper, the emphasis is put on the demonstration of the possibility to obtain various regimes of spatial filtering, i.e., band-stop, band-pass, and low-pass filtering in different frequency ranges in one simple configuration. The operation is based on the use of several Floquet-Bloch modes with appropriate dispersion properties, so that such one or two co-existing mode(s) contribute to the forming of a proper filter characteristic within each specific frequency range. It is shown that high-efficiency transmission and steep switching between pass and stop bands can be obtained in the angle domain for wide ranges of variation of the problem parameters. In particular, by varying the rod-diameter-to-lattice-constant ratio, one attains lots of freedom in the engineering of spatial filters with desired transmission characteristics.
      Keywords
      Fabry-Perot resonance
      Floquet-Bloch mode
      Photonic crystal
      Spatial filtering
      Transmission
      Permalink
      http://hdl.handle.net/11693/36790
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.photonics.2015.11.001
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      • Nanotechnology Research Center (NANOTAM) 1179
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