Design analysis of a beam splitter based on the frustrated total internal reflection

J. R. Chang Chien, C. C. Liu, C. J. Wu*, P. Y. Wu, C. C. Li

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

2 引文 斯高帕斯(Scopus)

摘要

In this work, a theoretical analysis on the design of the beam splitter (BS) based on the frustrated total internal reflection (FTIR) is made. We consider a model structure made of a low-index gap layer bounded by two high-index layers. In the design of a 50/50 BS, we find that there exists a critical gap thickness which is a decreasing function of the angle of incidence for both TE and TM waves. There also exists a critical wavelength for the incident wave, and it increases with increasing angle of incidence. Finally, at a fixed gap thickness and wavelength of incident wave, the critical angle in TE wave is slightly larger than that of TM wave. The analysis provides some fundamental information that is of particular use to the design of a BS within the framework of FTIR.

原文英語
頁(從 - 到)71-83
頁數13
期刊Progress in Electromagnetics Research
124
DOIs
出版狀態已發佈 - 2012

ASJC Scopus subject areas

  • 輻射
  • 凝聚態物理學
  • 電氣與電子工程

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