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      Highly directional enhanced radiation from sources embedded inside two and three-dimensional photonic crystals

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      Author
      Caglayan H.
      Bulu I.
      Özbay, Ekmel
      Date
      2005
      Source Title
      Proceedings of SPIE - The International Society for Optical Engineering
      Print ISSN
      0277786X
      Volume
      5733
      Pages
      131 - 141
      Language
      English
      Type
      Conference Paper
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      Abstract
      In this work, we have experimentally and theoretically studied the emission of radiation from a monopole source embedded in a two and three dimensional photonic crystal. We have demonstrated the enhancement of radiation at the band edges and at the cavity modes including coupled cavity modes. We have shown that the emission of radiation from a source depends on the group velocities of the modes and on the electric field intensities of the modes at the source location. Moreover, we have studied the angular distribution of power emitted from a radiation source embedded inside a photonic crystal. Our results show that it is possible to obtain highly directive radiation sources operating at the band edge of the photonic crystal.
      Keywords
      Directivity
      Enhancement
      Photonic crystal
      Radiation
      Crystals
      Eigenvalues and eigenfunctions
      Electric field effects
      Electromagnetic wave propagation
      Frequencies
      Permittivity
      Problem solving
      Radiation
      Vectors
      Cavity modes
      Directivity
      Enhancement
      Photonic crystals
      Photons
      Permalink
      http://hdl.handle.net/11693/27379
      Published Version (Please cite this version)
      http://dx.doi.org/10.1117/12.587503
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      • Department of Physics 2149

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