@inproceedings{39d12a65afe24e588105cfbd1b10cebe,
title = "Systematics of an ambient-temperature, rapidly-rotating half-wave plate",
abstract = "In these proceedings, we summarize our in-field evaluation of temperature-to-polarization leakage associated with the use of a continuously-rotating, ambient-temperature half-wave plate (HWP) on the Atacama B-Mode Search (ABS) experiment. Using two seasons of data, we demonstrate scalar leakage of \textasciitilde{} 0.01\%. This is consistent with model expectations and an order of magnitude better than any previously-reported leakage. We constrain higher-order dipole and quadrupole leakage terms to be < 0.06\% (95\% confidence). Without any mitigation from scan cross-linking or boresight rotation, this corresponds to an upper limit on systematic errors in the tensor-to-scalar ratio r ≤ 0.01. The HWP significantly reduces temperature-to-polarization leakage systematic errors for ABS and shows the promise of fast polarization modulation with HWPs for future experiments. Full details can be found in Ref. 1.",
keywords = "B-mode polarization, Cosmic microwave background (CMB), Half-wave plates, Polarization modulators",
author = "T. Essinger-Hileman and A. Kusaka and Appel, \{J. W.\} and P. Gallardo and Irwin, \{K. D.\} and N. Jarosik and Nolta, \{M. R.\} and Page, \{L. A.\} and Parker, \{L. P.\} and S. Raghunathan and Sievers, \{J. L.\} and Simon, \{S. M.\} and Staggs, \{S. T.\} and K. Visnjic",
note = "Publisher Copyright: {\textcopyright} 2016 SPIE.; Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII ; Conference date: 28-06-2016 Through 01-07-2016",
year = "2016",
doi = "10.1117/12.2232711",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Jonas Zmuidzinas and Holland, \{Wayne S.\}",
booktitle = "Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII",
address = "United States",
}