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Design and Deployment of a Multichroic Polarimeter Array on the Atacama Cosmology Telescope

Author(s): Datta, R; Austermann, J; Beall, JA; Becker, D; Coughlin, KP; et al

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Abstract: We present the design and the preliminary on-sky performance with respect to beams and passbands of a multichroic polarimeter array covering the 90 and 146 GHz cosmic microwave background bands and its enabling broad-band optical system recently deployed on the Atacama Cosmology Telescope (ACT). The constituent pixels are feedhorn-coupled multichroic polarimeters fabricated at NIST. This array is coupled to the ACT telescope via a set of three silicon lenses incorporating novel broad-band metamaterial anti-reflection coatings. This receiver represents the first multichroic detector array deployed for a CMB experiment and paves the way for the extensive use of multichroic detectors and broad-band optical systems in the next generation of CMB experiments.
Publication Date: Aug-2016
Electronic Publication Date: 10-Mar-2016
Citation: Datta, R, Austermann, J, Beall, JA, Becker, D, Coughlin, KP, Duff, SM, Gallardo, PA, Grace, E, Hasselfield, M, Henderson, SW, Hilton, GC, Ho, SP, Hubmayr, J, Koopman, BJ, Lanen, JV, Li, D, McMahon, J, Munson, CD, Nati, F, Niemack, MD, Page, L, Pappas, CG, Salatino, M, Schmitt, BL, Schillaci, A, Simon, SM, Staggs, ST, Stevens, JR, Vavagiakis, EM, Ward, JT, Wollack, EJ. (2016). Design and Deployment of a Multichroic Polarimeter Array on the Atacama Cosmology Telescope. JOURNAL OF LOW TEMPERATURE PHYSICS, 184 (568 - 575. doi:10.1007/s10909-016-1553-5
DOI: doi:10.1007/s10909-016-1553-5
ISSN: 0022-2291
EISSN: 1573-7357
Pages: 568 - 575
Type of Material: Journal Article
Version: Author's manuscript

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