POLOCAM: a millimeter wavelength cryogenic polarimeter prototype for MUSIC-POL

Glenn T. Laurent; John E. Vaillancourt; Giorgio Savini; Peter A. R. Ade; Stephane Beland; Jason Glenn; Matthew I. Hollister; Philip R. Maloney; Jack Sayers

doi:10.1117/12.926430

24 September 2012 POLOCAM: a millimeter wavelength cryogenic polarimeter prototype for MUSIC-POL

Glenn T. Laurent, John E. Vaillancourt, Giorgio Savini, Peter A. R. Ade, Stephane Beland, Jason Glenn, Matthew I. Hollister, Philip R. Maloney, Jack Sayers

Author Affiliations +

Proceedings Volume 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI; 84521S (2012) https://doi.org/10.1117/12.926430
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

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.

Citation Download Citation

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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