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24 September 2012 POLOCAM: a millimeter wavelength cryogenic polarimeter prototype for MUSIC-POL
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Abstract
As a proof-of-concept, we have constructed and tested a cryogenic polarimeter in the laboratory as a prototype for the MUSIC instrument (Multiwavelength Sub/millimeter Kinetic Inductance Camera). The POLOCAM instrument consists of a rotating cryogenic polarization modulator (sapphire half-waveplate) and polarization analyzer (lithographed copper polarizers deposited on a thin film) placed into the optical path at the Lyot stop (4K cold pupil stop) in a cryogenic dewar. We present an overview of the project, design and performance results of the POLOCAM instrument (including polarization efficiencies and instrumental polarization), as well as future application to the MUSIC-POL instrument.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Glenn T. Laurent, John E. Vaillancourt, Giorgio Savini, Peter A. R. Ade, Stephane Beland, Jason Glenn, Matthew I. Hollister, Philip R. Maloney, and Jack Sayers "POLOCAM: a millimeter wavelength cryogenic polarimeter prototype for MUSIC-POL", Proc. SPIE 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI, 84521S (24 September 2012); https://doi.org/10.1117/12.926430
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