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High-Q filters based on one-dimensional photonic crystals using epsilon-negative materials

  • Y. T. Fang*
  • , J. Zhou
  • , E. Y.B. Pun
  • *Corresponding author for this work
  • Zhenjiang Watercraft College
  • Jiangsu University
  • City University of Hong Kong

Research output: Contribution to journalArticlepeer-review

Abstract

A new type of filter based on one-dimensional photonic crystals is presented. A photonic crystal consists of a periodic repetition of air layers and epsilon-negative (ENG) material layers. This type of filter has high-Q values without defects. The Q values and the filtering frequency can be precisely adjusted by modulating the thicknesses of the ENG material layers and the air layers, respectively. A method of deciding the position of the transmission band for the photonic crystals is presented. The effect of absorption of ENG materials on the filter is also considered.

Original languageEnglish
Pages (from-to)587-591
Number of pages5
JournalApplied Physics B: Lasers and Optics
Volume86
Issue number4
DOIs
StatePublished - Mar 2007
Externally publishedYes

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