Intensity-coupled Polarization in Instruments with a Continuously Rotating Half-wave Plate
| dc.contributor.author | Didier, Joy | |
| dc.contributor.author | Miller, Amber D. | |
| dc.contributor.author | Araujo, Derek | |
| dc.contributor.author | Aubin, François | |
| dc.contributor.author | Helson, Kyle | |
| dc.contributor.author | et al | |
| dc.date.accessioned | 2022-02-08T15:43:07Z | |
| dc.date.available | 2022-02-08T15:43:07Z | |
| dc.date.issued | 2019-05-01 | |
| dc.description | Authors: Joy Didier, , Amber D. Miller, , Derek Araujo , François Aubin, , Christopher Geach , Bradley Johnson , Andrei Korotkov , Kate Raach , Benjamin Westbrook , Karl Young , Asad M. Aboobaker, , Peter Ade , Carlo Baccigalupi , Chaoyun Bao , Daniel Chapman , Matt Dobbs,, Will Grainger, Shaul Hanany , Kyle Helson, , Seth Hillbrand , Johannes Hubmayr, Andrew Jaffe , Terry J. Jones , Jeff Klein , Adrian Lee , Michele Limon, , Kevin MacDermid , Michael Milligan , Enzo Pascale, Britt Reichborn-Kjennerud , Ilan Sagiv , Carole Tucker , Gregory S. Tucker , and Kyle Zilic | en_US |
| dc.description.abstract | We discuss a systematic effect associated with measuring polarization with a continuously rotating half-wave plate (HWP). The effect was identified with the data from the E and B Experiment, which was a balloon-borne instrument designed to measure the polarization of the cosmic microwave background (CMB) as well as that from Galactic dust. The data show polarization fractions larger than 10%, while less than 3% were expected from instrumental polarization. We give evidence that the excess polarization is due to detector nonlinearity in the presence of a continuously rotating HWP. The nonlinearity couples intensity signals to polarization. We develop a map-based method to remove the excess polarization. Applying this method to the 150 (250) GHz band data, we find that 81% (92%) of the excess polarization was removed. Characterization and mitigation of this effect are important for future experiments aiming to measure the CMB B-modes with a continuously rotating HWP. | en_US |
| dc.description.sponsorship | J.D. acknowledges the NASA NESSF fellowship NNX11 AL15H. Support for the development and flight of the EBEX instrument was provided by NASA grants NNX12 AD50G, NNX 13AE49G, NNX08AG40G, and NNG05GE62G, and by NSF grants AST-0705134 and ANT-0944513. We acknowledge support from the Italian INFN INDARK Initiative. P.A. and C. T. acknowledge the Science & Technology Facilities Council for its continued support of the underpinning technology for filter and waveplate development. We also acknowledge support by the Canada Space Agency, the Canada Research Chairs Program, the Natural Sciences and Engineering Research Council of Canada, the Canadian Institute for Advanced Research, the Minnesota Supercomputing Institute, the National Energy Research Scientific Computing Center, the Minnesota and Rhode Island Space Grant Consortia, our collaborating institutions, and Sigma Xi the Scientific Research Society. C.B. acknowledges support from the RADIOFOREGROUNDS grant of the European Union’s Horizon 2020 research and innovation program (COMPET-05-2015, grant agreement No. 687312) and the INDARK INFN Initiative. B.R.-K. acknowledges an NSF Post-doctoral Fellowship AST-1102774 and a NASA Graduate Student Research Fellowship. K.R. and K.Z. acknowledge support by the Minnesota Space Grant Consortium. K.H. acknowledges NASA NSTRF fellowship NNX11AN35H. We very much thank Danny Ball and his colleagues at the Columbia Scientific Balloon Facility for their dedicated support of the EBEX program. We thank the referee for his detailed comments, which helped improve the paper. | en_US |
| dc.description.uri | https://iopscience.iop.org/article/10.3847/1538-4357/ab0f36/pdf | en_US |
| dc.format.extent | 14 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2hsjd-nfpf | |
| dc.identifier.citation | Didier, Joy et al. Intensity-coupled Polarization in Instruments with a Continuously Rotating Half-wave Plate. The Astrophysical Journal, 876 (May 3, 2019) 1. https://doi.org/10.3847/1538-4357/ab0f36. | en_US |
| dc.identifier.uri | https://doi.org/10.3847/1538-4357/ab0f36 | |
| dc.identifier.uri | http://hdl.handle.net/11603/24141 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | IOP | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology | |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | en_US |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | Intensity-coupled Polarization in Instruments with a Continuously Rotating Half-wave Plate | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0001-9238-4918 | en_US |