Comparison of quarter-wave retarders over finite spectral and angular bandwidths for infrared polarimetric-imaging applications
Abbreviated Journal Title
FABRICATION; PLATE; Optics
We compare three technological approaches for quarter-wave retarders within the context of polarimetric-imaging applications in the long-wave infrared (LWIR) spectrum. Performance of a commercial cadmium sulfide (CdS) crystalline waveplate, a multilayer meanderline structure, and a silicon (Si) form-birefringent retarder are evaluated under conditions of 8-12 mu m broadband radiation emerging from an F/1 focusing objective. Metrics used for this comparison are the spectrally dependent axial ratio, retardance, and polarization-averaged power transmittance, which are averaged over the angular range of interest. These parameters correspond to the characteristics that would be observed at the focal-plane array (FPA) detector of an LWIR imaging polarimeter. (C) 2011 Optical Society of America
"Comparison of quarter-wave retarders over finite spectral and angular bandwidths for infrared polarimetric-imaging applications" (2011). Faculty Bibliography 2010s. 2053.