Title

Comparison Of Quarter-Wave Retarders Over Finite Spectral And Angular Bandwidths For Infrared Polarimetric-Imaging Applications

Abstract

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) formbirefringent retarder are evaluated under conditions of 8-12 μm 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. © 2011 Optical Society of America.

Publication Date

12-20-2011

Publication Title

Applied Optics

Volume

50

Issue

36

Number of Pages

6682-6688

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/AO.50.006682

Socpus ID

84255172804 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84255172804

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