Published September 24, 2012
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POLOCAM: a millimeter wavelength cryogenic polarimeter prototype for MUSIC-POL
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.
Additional Information
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). The POLOCAM project is supported by NSF ATI grant 0843916 to Southwest Research Institute. In addition, we acknowledge the University of Colorado for access to laboratory and test facilities and the University of Cardiff for waveplate assembly and testing.Attached Files
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Additional details
- Eprint ID
- 71462
- Resolver ID
- CaltechAUTHORS:20161025-131903812
- ATI-0843916
- NSF
- Created
-
2016-10-25Created from EPrint's datestamp field
- Updated
-
2021-11-11Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 8452