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Optical and thermal properties of ANL/KICP polarization sensitive bolometers for SPTpol

  • C. L. Chang
  • , P. Ade
  • , K. Aird
  • , J. Austermann
  • , J. Beall
  • , D. Becker
  • , B. Benson
  • , L. Bleem
  • , J. Britton
  • , J. Carlstrom
  • , H. Cho
  • , T. De Haan
  • , T. Crawford
  • , A. Crites
  • , A. Datesman
  • , M. Dobbs
  • , W. Everett
  • , A. Ewall-Wice
  • , E. George
  • , N. Halverson
  • N. Harrington, J. Henning, G. Hilton, W. Holzapfel, S. Hoover, J. Hubmayr, K. Irwin, R. Keisler, J. Kennedy, A. Lee, E. Leitch, D. Li, M. Lueker, D. P. Marrone, J. McMahon, J. Mehl, S. Meyer, J. Montgomery, T. Montroy, T. Natoli, J. Nibarger, M. Niemack, V. Novosad, S. Padin, C. Pryke, C. Reichardt, J. Ruhl, B. Saliwanchik, J. Sayre, K. Schafer, E. Shirokoff, K. Story, K. Vanderlinde, J. Vieira, G. Wang, R. Williamson, V. Yefremenko, K. W. Yoon, E. Young

Research output: Contribution to journalArticlepeer-review

Abstract

We present recent optical and thermal characterizations of polarization sensitive mm-wave bolometers fabricated at Argonne National Lab. The devices are designed to measure the polarization of the Cosmic Microwave Background and consist of a Mo/Au TES suspended on SiN with a Pd-Au dipole absorber. The detector performance is excellent with >85% co-polar coupling, <1% cross-polar leakage, 36 GHz optical bandwidth, electrothermal loop gains of approximately 10, and NEP ≃50 aWHz-1/2.

Original languageEnglish (US)
Pages (from-to)865-871
Number of pages7
JournalJournal of Low Temperature Physics
Volume167
Issue number5-6
DOIs
StatePublished - Jun 2012

Keywords

  • Bolometers
  • CMB
  • Transition edge sensors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics

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