Optical characterization of the BICEP3 CMB polarimeter at the South Pole

K. S. Karkare; P. A.R. Ade; Z. Ahmed; K. D. Alexander; M. Amiri; D. Barkats; S. J. Benton; C. A. Bischoff; J. J. Bock; H. Boenish; R. Bowens-Rubin; I. Buder; E. Bullock; V. Buza; J. Connors; J. P. Filippini; S. T. Fliescher; J. A. Grayson; M. Halpern; S. A. Harrison; G. C. Hilton; V. V. Hristov; H. Hui; K. D. Irwin; J. H. Kang; E. Karpel; S. Kefeli; S. A. Kernasovskiy; J. M. Kovac; C. L. Kuo; E. M. Leitch; M. Lueker; K. G. Megerian; V. Monticue; T. Namikawa; C. B. Netterfield; H. T. Nguyen; R. O'Brient; R. W. Ogburn; C. L. Pryke; C. D. Reintsema; S. Richter; M. T. St Germaine; R. Schwarz; C. D. Sheehy; Z. K. Staniszewski; B. Steinbach; G. P. Teply; K. L. Thompson; J. E. Tolan; C. Tucker; A. D. Turner; A. G. Vieregg; A. Wandui; A. Weber; J. Willmert; C. L. Wong; W. L.K. Wu; K. W. Yoon

doi:10.1117/12.2231747

Optical characterization of the BICEP3 CMB polarimeter at the South Pole

K. S. Karkare, P. A.R. Ade, Z. Ahmed, K. D. Alexander, M. Amiri, D. Barkats, S. J. Benton, C. A. Bischoff, J. J. Bock, H. Boenish, R. Bowens-Rubin, I. Buder, E. Bullock, V. Buza, J. Connors, J. P. Filippini, S. T. Fliescher, J. A. Grayson, M. Halpern, S. A. HarrisonG. C. Hilton, V. V. Hristov, H. Hui, K. D. Irwin, J. H. Kang, E. Karpel, S. Kefeli, S. A. Kernasovskiy, J. M. Kovac, C. L. Kuo, E. M. Leitch, M. Lueker, K. G. Megerian, V. Monticue, T. Namikawa, C. B. Netterfield, H. T. Nguyen, R. O'Brient, R. W. Ogburn, C. L. Pryke, C. D. Reintsema, S. Richter, M. T. St Germaine, R. Schwarz, C. D. Sheehy, Z. K. Staniszewski, B. Steinbach, G. P. Teply, K. L. Thompson, J. E. Tolan, C. Tucker, A. D. Turner, A. G. Vieregg, A. Wandui, A. Weber, J. Willmert, C. L. Wong, W. L.K. Wu, K. W. Yoon

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

14 Scopus citations

Abstract

BICEP3 is a small-aperture refracting cosmic microwave background (CMB) telescope designed to make sensitive polarization maps in pursuit of a potential B-mode signal from inflationary gravitational waves. It is the latest in the Bicep/Keck Array series of CMB experiments located at the South Pole, which has provided the most stringent constraints on inflation to date. For the 2016 observing season, BICEP3 was outfitted with a full suite of 2400 optically coupled detectors operating at 95 GHz. In these proceedings we report on the far field beam performance using calibration data taken during the 2015-2016 summer deployment season in situ with a thermal chopped source. We generate high-fidelity per-detector beam maps, show the array-averaged beam profile, and characterize the differential beam response between co-located, orthogonally polarized detectors which contributes to the leading instrumental systematic in pair differencing experiments. We find that the levels of differential pointing, beamwidth, and ellipticity are similar to or lower than those measured for Bicep2 and Keck Array. The magnitude and distribution of Bicep3's differential beam mismatch - and the level to which temperature-to-polarization leakage may be marginalized over or subtracted in analysis - will inform the design of next-generation CMB experiments with many thousands of detectors.

Original language	English
Title of host publication	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII
Editors	Jonas Zmuidzinas, Wayne S. Holland
Publisher	SPIE
ISBN (Electronic)	9781510602076
DOIs	https://doi.org/10.1117/12.2231747
State	Published - 2016
Externally published	Yes
Event	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII - Edinburgh, United Kingdom Duration: Jun 28 2016 → Jul 1 2016

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9914
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII
Country/Territory	United Kingdom
City	Edinburgh
Period	06/28/16 → 07/1/16

Keywords

BICEP
Cosmic microwave background
Gravitational waves
Inflation
Polarization

Access to Document

10.1117/12.2231747

Cite this

Karkare, K. S., Ade, P. A. R., Ahmed, Z., Alexander, K. D., Amiri, M., Barkats, D., Benton, S. J., Bischoff, C. A., Bock, J. J., Boenish, H., Bowens-Rubin, R., Buder, I., Bullock, E., Buza, V., Connors, J., Filippini, J. P., Fliescher, S. T., Grayson, J. A., Halpern, M., ... Yoon, K. W. (2016). Optical characterization of the BICEP3 CMB polarimeter at the South Pole. In J. Zmuidzinas, & W. S. Holland (Eds.), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII Article 991430 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9914). SPIE. https://doi.org/10.1117/12.2231747

@inproceedings{61367d44a2c340be83db3e98bd4af6ed,

title = "Optical characterization of the BICEP3 CMB polarimeter at the South Pole",

abstract = "BICEP3 is a small-aperture refracting cosmic microwave background (CMB) telescope designed to make sensitive polarization maps in pursuit of a potential B-mode signal from inflationary gravitational waves. It is the latest in the Bicep/Keck Array series of CMB experiments located at the South Pole, which has provided the most stringent constraints on inflation to date. For the 2016 observing season, BICEP3 was outfitted with a full suite of 2400 optically coupled detectors operating at 95 GHz. In these proceedings we report on the far field beam performance using calibration data taken during the 2015-2016 summer deployment season in situ with a thermal chopped source. We generate high-fidelity per-detector beam maps, show the array-averaged beam profile, and characterize the differential beam response between co-located, orthogonally polarized detectors which contributes to the leading instrumental systematic in pair differencing experiments. We find that the levels of differential pointing, beamwidth, and ellipticity are similar to or lower than those measured for Bicep2 and Keck Array. The magnitude and distribution of Bicep3's differential beam mismatch - and the level to which temperature-to-polarization leakage may be marginalized over or subtracted in analysis - will inform the design of next-generation CMB experiments with many thousands of detectors.",

keywords = "BICEP, Cosmic microwave background, Gravitational waves, Inflation, Polarization",

author = "Karkare, \{K. S.\} and Ade, \{P. A.R.\} and Z. Ahmed and Alexander, \{K. D.\} and M. Amiri and D. Barkats and Benton, \{S. J.\} and Bischoff, \{C. A.\} and Bock, \{J. J.\} and H. Boenish and R. Bowens-Rubin and I. Buder and E. Bullock and V. Buza and J. Connors and Filippini, \{J. P.\} and Fliescher, \{S. T.\} and Grayson, \{J. A.\} and M. Halpern and Harrison, \{S. A.\} and Hilton, \{G. C.\} and Hristov, \{V. V.\} and H. Hui and Irwin, \{K. D.\} and Kang, \{J. H.\} and E. Karpel and S. Kefeli and Kernasovskiy, \{S. A.\} and Kovac, \{J. M.\} and Kuo, \{C. L.\} and Leitch, \{E. M.\} and M. Lueker and Megerian, \{K. G.\} and V. Monticue and T. Namikawa and Netterfield, \{C. B.\} and Nguyen, \{H. T.\} and R. O'Brient and Ogburn, \{R. W.\} and Pryke, \{C. L.\} and Reintsema, \{C. D.\} and S. Richter and \{St Germaine\}, \{M. T.\} and R. Schwarz and Sheehy, \{C. D.\} and Staniszewski, \{Z. K.\} and B. Steinbach and Teply, \{G. P.\} and Thompson, \{K. L.\} and Tolan, \{J. E.\} and C. Tucker and Turner, \{A. D.\} and Vieregg, \{A. G.\} and A. Wandui and A. Weber and J. Willmert and Wong, \{C. L.\} and Wu, \{W. L.K.\} and Yoon, \{K. W.\}",

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 = "10.1117/12.2231747",

language = "English",

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",

}

Karkare, KS, Ade, PAR, Ahmed, Z, Alexander, KD, Amiri, M, Barkats, D, Benton, SJ, Bischoff, CA, Bock, JJ, Boenish, H, Bowens-Rubin, R, Buder, I, Bullock, E, Buza, V, Connors, J, Filippini, JP, Fliescher, ST, Grayson, JA, Halpern, M, Harrison, SA, Hilton, GC, Hristov, VV, Hui, H, Irwin, KD, Kang, JH, Karpel, E, Kefeli, S, Kernasovskiy, SA, Kovac, JM, Kuo, CL, Leitch, EM, Lueker, M, Megerian, KG, Monticue, V, Namikawa, T, Netterfield, CB, Nguyen, HT, O'Brient, R, Ogburn, RW, Pryke, CL, Reintsema, CD, Richter, S, St Germaine, MT, Schwarz, R, Sheehy, CD, Staniszewski, ZK, Steinbach, B, Teply, GP, Thompson, KL, Tolan, JE, Tucker, C, Turner, AD, Vieregg, AG, Wandui, A, Weber, A, Willmert, J, Wong, CL, Wu, WLK & Yoon, KW 2016, Optical characterization of the BICEP3 CMB polarimeter at the South Pole. in J Zmuidzinas & WS Holland (eds), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII., 991430, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9914, SPIE, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII, Edinburgh, United Kingdom, 06/28/16. https://doi.org/10.1117/12.2231747

Optical characterization of the BICEP3 CMB polarimeter at the South Pole. / Karkare, K. S.; Ade, P. A.R.; Ahmed, Z. et al.
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII. ed. / Jonas Zmuidzinas; Wayne S. Holland. SPIE, 2016. 991430 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9914).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Optical characterization of the BICEP3 CMB polarimeter at the South Pole

AU - Karkare, K. S.

AU - Ade, P. A.R.

AU - Ahmed, Z.

AU - Alexander, K. D.

AU - Amiri, M.

AU - Barkats, D.

AU - Benton, S. J.

AU - Bischoff, C. A.

AU - Bock, J. J.

AU - Boenish, H.

AU - Bowens-Rubin, R.

AU - Buder, I.

AU - Bullock, E.

AU - Buza, V.

AU - Connors, J.

AU - Filippini, J. P.

AU - Fliescher, S. T.

AU - Grayson, J. A.

AU - Halpern, M.

AU - Harrison, S. A.

AU - Hilton, G. C.

AU - Hristov, V. V.

AU - Hui, H.

AU - Irwin, K. D.

AU - Kang, J. H.

AU - Karpel, E.

AU - Kefeli, S.

AU - Kernasovskiy, S. A.

AU - Kovac, J. M.

AU - Kuo, C. L.

AU - Leitch, E. M.

AU - Lueker, M.

AU - Megerian, K. G.

AU - Monticue, V.

AU - Namikawa, T.

AU - Netterfield, C. B.

AU - Nguyen, H. T.

AU - O'Brient, R.

AU - Ogburn, R. W.

AU - Pryke, C. L.

AU - Reintsema, C. D.

AU - Richter, S.

AU - St Germaine, M. T.

AU - Schwarz, R.

AU - Sheehy, C. D.

AU - Staniszewski, Z. K.

AU - Steinbach, B.

AU - Teply, G. P.

AU - Thompson, K. L.

AU - Tolan, J. E.

AU - Tucker, C.

AU - Turner, A. D.

AU - Vieregg, A. G.

AU - Wandui, A.

AU - Weber, A.

AU - Willmert, J.

AU - Wong, C. L.

AU - Wu, W. L.K.

AU - Yoon, K. W.

PY - 2016

Y1 - 2016

N2 - BICEP3 is a small-aperture refracting cosmic microwave background (CMB) telescope designed to make sensitive polarization maps in pursuit of a potential B-mode signal from inflationary gravitational waves. It is the latest in the Bicep/Keck Array series of CMB experiments located at the South Pole, which has provided the most stringent constraints on inflation to date. For the 2016 observing season, BICEP3 was outfitted with a full suite of 2400 optically coupled detectors operating at 95 GHz. In these proceedings we report on the far field beam performance using calibration data taken during the 2015-2016 summer deployment season in situ with a thermal chopped source. We generate high-fidelity per-detector beam maps, show the array-averaged beam profile, and characterize the differential beam response between co-located, orthogonally polarized detectors which contributes to the leading instrumental systematic in pair differencing experiments. We find that the levels of differential pointing, beamwidth, and ellipticity are similar to or lower than those measured for Bicep2 and Keck Array. The magnitude and distribution of Bicep3's differential beam mismatch - and the level to which temperature-to-polarization leakage may be marginalized over or subtracted in analysis - will inform the design of next-generation CMB experiments with many thousands of detectors.

AB - BICEP3 is a small-aperture refracting cosmic microwave background (CMB) telescope designed to make sensitive polarization maps in pursuit of a potential B-mode signal from inflationary gravitational waves. It is the latest in the Bicep/Keck Array series of CMB experiments located at the South Pole, which has provided the most stringent constraints on inflation to date. For the 2016 observing season, BICEP3 was outfitted with a full suite of 2400 optically coupled detectors operating at 95 GHz. In these proceedings we report on the far field beam performance using calibration data taken during the 2015-2016 summer deployment season in situ with a thermal chopped source. We generate high-fidelity per-detector beam maps, show the array-averaged beam profile, and characterize the differential beam response between co-located, orthogonally polarized detectors which contributes to the leading instrumental systematic in pair differencing experiments. We find that the levels of differential pointing, beamwidth, and ellipticity are similar to or lower than those measured for Bicep2 and Keck Array. The magnitude and distribution of Bicep3's differential beam mismatch - and the level to which temperature-to-polarization leakage may be marginalized over or subtracted in analysis - will inform the design of next-generation CMB experiments with many thousands of detectors.

KW - BICEP

KW - Cosmic microwave background

KW - Gravitational waves

KW - Inflation

KW - Polarization

UR - https://www.scopus.com/pages/publications/85015073831

U2 - 10.1117/12.2231747

DO - 10.1117/12.2231747

M3 - Conference contribution

AN - SCOPUS:85015073831

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII

A2 - Zmuidzinas, Jonas

A2 - Holland, Wayne S.

PB - SPIE

T2 - Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII

Y2 - 28 June 2016 through 1 July 2016

ER -

Karkare KS, Ade PAR, Ahmed Z, Alexander KD, Amiri M, Barkats D et al. Optical characterization of the BICEP3 CMB polarimeter at the South Pole. In Zmuidzinas J, Holland WS, editors, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII. SPIE. 2016. 991430. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2231747

Optical characterization of the BICEP3 CMB polarimeter at the South Pole

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Keywords

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