Horn Coupled Multichroic Polarimeters for the Atacama Cosmology Telescope Polarization Experiment

Rahul Datta; Johannes Hubmayr; Charles Munson; Jason Austermann; James Beall; Dan Becker; Hsiao-Mei Cho; Nils Halverson; Gene Hilton; Kent Irwin; Dale Li; Jeff McMahon; Laura Newburgh; John Nibarger; Michael Niemack; Benjamin Schmitt; Harrison Smith; Suzanne Staggs; Jeff Van Lanen; Edward Wollack

doi:10.1007/s10909-014-1134-4

Horn Coupled Multichroic Polarimeters for the Atacama Cosmology Telescope Polarization Experiment

Instrumentation and Methods for Astrophysics 2015-06-18 v1

Authors: Rahul Datta , Johannes Hubmayr , Charles Munson , Jason Austermann , James Beall , Dan Becker , Hsiao-Mei Cho , Nils Halverson , Gene Hilton , Kent Irwin , Dale Li , Jeff McMahon , Laura Newburgh , John Nibarger , Michael Niemack , Benjamin Schmitt , Harrison Smith , Suzanne Staggs , Jeff Van Lanen , Edward Wollack

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Abstract

Multichroic polarization sensitive detectors enable increased sensitivity and spectral coverage for observations of the Cosmic Microwave Background (CMB). 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.

Keywords

multichroic polarimeters horn coupling cosmic microwave background ACTPol detector arrays millimeter-wave astronomy

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@article{arxiv.1401.8029,
  title  = {Horn Coupled Multichroic Polarimeters for the Atacama Cosmology Telescope Polarization Experiment},
  author = {Rahul Datta and Johannes Hubmayr and Charles Munson and Jason Austermann and James Beall and Dan Becker and Hsiao-Mei Cho and Nils Halverson and Gene Hilton and Kent Irwin and Dale Li and Jeff McMahon and Laura Newburgh and John Nibarger and Michael Niemack and Benjamin Schmitt and Harrison Smith and Suzanne Staggs and Jeff Van Lanen and Edward Wollack},
  journal= {arXiv preprint arXiv:1401.8029},
  year   = {2015}
}

Horn Coupled Multichroic Polarimeters for the Atacama Cosmology Telescope Polarization Experiment

Abstract

Keywords

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