2-Cam LWIR imaging Stokes polarimeter

Michael W. Kudenov; Eustace L. Dereniak; Larry Pezzaniti; Grant R. Gerhart

doi:10.1117/12.784796

2 April 2008 2-Cam LWIR imaging Stokes polarimeter

Michael W. Kudenov, Eustace L. Dereniak, Larry Pezzaniti, Grant R. Gerhart

Proceedings Volume 6972, Polarization: Measurement, Analysis, and Remote Sensing VIII; 69720K (2008) https://doi.org/10.1117/12.784796
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

A 2-Cam micro-bolometer imaging polarimeter operating in the LWIR is presented. The system is capable of snapshot imaging Stokes polarimetry in any one channel (S₁, S₂, or S₃) by taking two simultaneous measurements of a scene. For measurements of S₁ or S₂, the instrument relies on a specially optimized wire-grid beam-splitter. For measurements of S₃, a form birefringent quarter-wave retarder is inserted into the optical path. Specifics associated with the design of the wire-grid beam-splitter and the form birefringent quarter-wave retarder will be overviewed, with inclusion of RCWA simulations. Calibration and simulation procedures, as well as calibration targets, will be highlighted, and initial data from the instrument are presented.

Citation Download Citation

Michael W. Kudenov, Eustace L. Dereniak, Larry Pezzaniti, and Grant R. Gerhart "2-Cam LWIR imaging Stokes polarimeter", Proc. SPIE 6972, Polarization: Measurement, Analysis, and Remote Sensing VIII, 69720K (2 April 2008); https://doi.org/10.1117/12.784796

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