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Dispersion and localization of defect state in one-dimensional photonic crystal consisting of metamaterials

Dong Jian-Wen Chen Yi-Hang Wang He-Zhou

Dispersion and localization of defect state in one-dimensional photonic crystal consisting of metamaterials

Dong Jian-Wen, Chen Yi-Hang, Wang He-Zhou
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  • Received Date:  12 December 2005
  • Accepted Date:  13 January 2006
  • Published Online:  20 January 2007

Dispersion and localization of defect state in one-dimensional photonic crystal consisting of metamaterials

  • 1. 中山大学光电材料与技术国家重点实验室,广州 510275

Abstract: The expressions of the dispersion relationship and space localization in the one-dimensional photonic crystal (1DPC) with symmetric semi-infinite period number and a central defect layer are deduced, which are valid for the defect 1DPC consisting of materials with arbitrary frequency-dependence. Based upon them, we found that the eigenfrequency of defect state is red-shifted with the increasing geometry thickness of defect layer in right-handed materials. On the contrary, the frequency is blue-shifted when the defect layer is a left-handed material. Moreover, the defect state is more localized for symmetric semi-infinite period structures consisting of metamaterials than those of conventional right-handed materials.

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