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The presence of multiple polarized beams can limit the polarimetric discrimination capability of a wire-grid polarizer
(WGP). In this study, the effect of linearly polarized background on the polarimetric performance of a WGP has been
investigated and compared with that of a perfect polarizer. Simulation results based on rigorous coupled-wave analysis
indicate that while a WGP mimics a perfect polarizer in discrimination characteristics, the range of the object
polarization angle that can be discriminated against polarized background is fairly limited. The negative impact of
Rayleigh anomaly is also discussed. The detectability of the object polarization can be strongly enhanced by employing a
multi-cell WGP with multiple polarization orientations.
Donghyun Kim andSeyoung Moon
"Discrimination characteristics of a wire-grid polarizer for polarimetric detection of multiple polarized beams", Proc. SPIE 6468, Physics and Simulation of Optoelectronic Devices XV, 64680Z (22 March 2007); https://doi.org/10.1117/12.699659
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Donghyun Kim, Seyoung Moon, "Discrimination characteristics of a wire-grid polarizer for polarimetric detection of multiple polarized beams," Proc. SPIE 6468, Physics and Simulation of Optoelectronic Devices XV, 64680Z (22 March 2007); https://doi.org/10.1117/12.699659