Analysis of tunable multiple-filtering property in a photonic crystal containing strongly extrinsic semiconductor

H. C. Hung, C. J. Wu, T. J. Yang, S. J. Chang

研究成果: 雜誌貢獻文章

11 引文 斯高帕斯(Scopus)

摘要

In this work, we analyze the tunable multiple-filtering property at infrared frequency in a finite semiconductor-dielectric photonic crystal (SDPC), (AB) P A, where A is a strongly extrinsic semiconductor, n-type germanium (n-Ge). B is a dielectric material, and P is the number of periods. It is found that multiple filtering phenomenon can be obtained in the region where the permittivity of n-Ge is negative. The number of resonant peaks is found to be equal to P. With the permittivity of n-Ge being concentration-dependent, these resonant peaks can be shifted as a function of impurity concentration. The analysis indicates that such an SDPC can work as a tunable multichannel filter which is of technical use for the semiconductor applications in optical communications.

原文英語
頁(從 - 到)2089-2099
頁數11
期刊Journal of Electromagnetic Waves and Applications
25
發行號14-15
DOIs
出版狀態已發佈 - 2011 十一月 7

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

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