Influence of surface roughness on the polarimetric characteristics of a wire-grid grating polarizer

Hojeong Ryu, Soon Joon Yoon, Donghyun Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The influence of surface roughness on the polarimetric performance of a wire-grid polarizer (WGP) is numerically investigated using rigorous coupled-wave analysis over 100 random surface realizations. Surface roughness is modeled with a Gaussian surface, represented by two independent parameters: surface height deviation and correlation length of a profile. The results show that WGP performance can suffer from significant degradation as well as increased deviation with surface roughness, although the extent varies with specific parameters. The influence of roughness was also examined with respect to grating period as a WGP parameter and incident light properties, such as wavelength and angle.

Original languageEnglish
Pages (from-to)5715-5721
Number of pages7
JournalApplied Optics
Volume47
Issue number30
DOIs
Publication statusPublished - 2008 Oct 20

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)

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