Analysis of Unidirectional Absorption in a Defective Superconducting Photonic Crystal

Tsung Wen Chang, Chih Hsi Huang, Da Jun Hou, Chien Jang Wu, De Xin Chen

研究成果: 雜誌貢獻文章

6 引文 斯高帕斯(Scopus)

摘要

Terahertz unidirectional resonant absorption in a finite one-dimensional defective superconducting photonic crystal is theoretically investigated. We consider an asymmetric photonic crystal (AB)ND(BA) M, where A is a dielectric, B is a superconductor, D is the dielectric defect, and N, M are the stack numbers, respectively. At N ≠ M, it is found that the resonant absorption for the structure exhibits the unidirectional property. The unidirectional resonant absorption points increase as the difference between N and M increases. We also investigate the unidirectional property as a function of angle of incidence. The results show that the unidirectional absorption is nearly independent of the polarization at a given angle of incidence. The proposed structure can be used to design a polarization-independent optical device which may be technically used in superconducting photonics.

原文英語
文章編號7954601
期刊IEEE Photonics Journal
9
發行號4
DOIs
出版狀態已發佈 - 2017 八月 1

ASJC Scopus subject areas

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

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