Horn coupled multichroic polarimeters for the atacama cosmology telescope polarization experiment

R. Datta, J. Hubmayr, C. Munson, J. Austermann, J. Beall, D. Becker, H. M. Cho, N. Halverson, G. Hilton, K. Irwin, D. Li, J. McMahon, L. Newburgh, J. Nibarger, M. Niemack, B. Schmitt, H. Smith, S. Staggs, J. Van Lanen, E. Wollack

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

Multichroic polarization sensitive detectors enable increased sensitivity and spectral coverage for observations of the cosmic microwave background. An array optimized for dual frequency detectors can provide 1.7 times gain in sensitivity compared to a single frequency array. We present the design and measurements of horn coupled multichroic polarimeters encompassing the 90 and 150 GHz frequency bands and discuss our plans to field an array of these detectors as part of the ACTPol project.

Original languageEnglish (US)
Pages (from-to)670-676
Number of pages7
JournalJournal of Low Temperature Physics
Volume176
Issue number5-6
DOIs
StatePublished - Sep 2014

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

Keywords

  • Antireflection coating
  • Cosmic microwave background
  • Feedhorn
  • Millimeter-wave
  • Polarimeter
  • Silicon lenses
  • Superconducting detectors
  • TES

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    Datta, R., Hubmayr, J., Munson, C., Austermann, J., Beall, J., Becker, D., Cho, H. M., Halverson, N., Hilton, G., Irwin, K., Li, D., McMahon, J., Newburgh, L., Nibarger, J., Niemack, M., Schmitt, B., Smith, H., Staggs, S., Van Lanen, J., & Wollack, E. (2014). Horn coupled multichroic polarimeters for the atacama cosmology telescope polarization experiment. Journal of Low Temperature Physics, 176(5-6), 670-676. https://doi.org/10.1007/s10909-014-1134-4