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Study of broadband polarization conversion with metallic surface-relief gratings by rigorous coupled-wave analysis.

Authors
  • Tsai, Chang-Ching
  • Wu, Shin-Tson
Type
Published Article
Journal
Journal of the Optical Society of America. A, Optics, image science, and vision
Publication Date
Jun 01, 2008
Volume
25
Issue
6
Pages
1339–1348
Identifiers
PMID: 18516144
Source
Medline
License
Unknown

Abstract

The conical rigorous coupled-wave analysis (RCWA) is employed to calculate the polarization conversion through the excitation of surface plasmons on metallic gratings. Various examples are examined with this numerical scheme. Our calculated results are consistent with those obtained from experiment and from other numerical methods. Three types of subwavelength surface-relief gratings are studied for the capability of broadband polarization conversion in the visible region. For wide-angle applications, various incident angles are studied and high polarization conversion efficiency is achieved.

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