Analysis of effective plasma frequency in a magnetized extrinsic photonic crystal

Tzu Chyang King, Chao Chin Wang, Wen Kai Kuo, Chien Jang Wu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


The effective plasma frequency (EPF) in an extrinsic photonic crystal is theoretically analyzed. The extrinsic PC is a single homogeneous doped semiconductor (n-GaAs) that is influenced by an externally and periodically applied magnetic field. Based on the calculated photonic band structure, we investigate the magnetic-field dependence of EPF. The results reveal that the EPF will be smaller in the absence of the magnetic field and lowered down when the magnetic field increases. The EPF is shown to be a decreasing function of the filling factor of the magnetized region. Additionally, investigation of the first passband and band gap is also given. The study illustrates that such an extrinsic PC possesses tunable optical properties that are of technical use in semiconductor photonic applications.

Original languageEnglish
Article number6651744
JournalIEEE Photonics Journal
Issue number6
Publication statusPublished - 2013


  • Doped semiconductor
  • Effective plasma frequency
  • Extrinsic photonic crystal
  • Transfer matrix method

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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