Abstract
The polarimetric performance nonuniformity of a wire-grid polarizer (WGP) used in imaging polarimetry is investigated with a simple numerical model. The simulation results based on rigorous coupled-wave analysis show that the aperture ratio between the entrance pupil and the WGP significantly affects the uniformity among pixels of a WGP. Even with a WGP smaller than an imaging aperture, the results suggest that the design avoids incurring a Rayleigh anomaly, which causes a substantial increase in polarimetric nonuniformity. Minimizing the variation due to the characteristics of a WGP is important to reduce the likelihood of an error in imaging polarimetry.
© 2005 Optical Society of America
Full Article | PDF ArticleMore Like This
Donghyun Kim
Appl. Opt. 44(8) 1366-1371 (2005)
Donghyun Kim and Eunji Sim
J. Opt. Soc. Am. A 25(3) 558-565 (2008)
Hojeong Ryu, Soon Joon Yoon, and Donghyun Kim
Appl. Opt. 47(30) 5715-5721 (2008)