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Published September 24, 2012 | Version Published
Book Section - Chapter Open

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

Creators

  • 1. ROR icon Southwest Research Institute
  • 2. ROR icon Ames Research Center
  • 3. ROR icon University College London
  • 4. ROR icon Cardiff University
  • 5. ROR icon University of Colorado Boulder
  • 6. ROR icon Jet Propulsion Lab
  • 7. ROR icon California Institute of Technology

Contributors

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.

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Additional details

Identifiers

Eprint ID
71462
Resolver ID
CaltechAUTHORS:20161025-131903812

Funding

NSF
ATI-0843916

Dates

Created
2016-10-25
Created from EPrint's datestamp field
Updated
2021-11-11
Created from EPrint's last_modified field

Caltech Custom Metadata

Series Name
Proceedings of SPIE
Series Volume or Issue Number
8452