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      Defect-mode-like transmission and localization of light in photonic crystals without defects

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      Author
      Serebryannikov, A. E.
      Özbay, Ekmel
      Usik, P. V.
      Date
      2010-10-29
      Source Title
      Physical Review B - Condensed Matter and Materials Physics
      Print ISSN
      1098-0121
      Publisher
      The American Physical Society
      Volume
      82
      Issue
      16
      Pages
      165131-1 - 165131-7
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      It is shown that far- and near-field effects, which are similar to those arising in transmission through finite-thickness photonic crystals (PCs) with structural defects, can be obtained in the conventional defect-free dielectric square-lattice PCs. Multiple narrow peaks of total transmission can appear within a frequency range, where the noncircular isofrequency dispersion contours of one type are quickly transformed for a higher-order Floquet-Bloch wave to the noncircular contours of the other type, leading to a frequency-domain passband being very narrow within a certain range of variation of the angles of incidence. In this regime, the mirror reflectance of the equivalent Fabry-Pérot resonator takes rather large values, which correspond to large values of Q factor and group index of refraction, strong field localization, and good isolation of the transmission peaks from each other. In some examples presented, Q factor exceeds 104. © 2010 The American Physical Society.
      Permalink
      http://hdl.handle.net/11693/22163
      Published Version (Please cite this version)
      http://dx.doi.org/10.1103/PhysRevB.82.165131
      Collections
      • Department of Electrical and Electronics Engineering 3524
      • Department of Physics 2299
      • Nanotechnology Research Center (NANOTAM) 1006
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