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The BICEP/$\textit{Keck}$ (BK) series of cosmic microwave background (CMB) polarization experiments has, over the past decade and a half, produced a series of field-leading constraints on cosmic inflation via measurements of the "B-mode"…

BICEP1 is a millimeter-wavelength telescope designed specifically to measure the inflationary B-mode polarization of the Cosmic Microwave Background (CMB) at degree angular scales. We present results from an analysis of the data acquired…

The BICEP3 Polarimeter is a small aperture, refracting telescope, dedicated to the observation of the Cosmic Microwave Background (CMB) at 95GHz. It is designed to target degree angular scale polarization patterns, in particular the…

Background Imaging of Cosmic Extragalactic Polarization (BICEP) is a bolometric polarimeter designed to measure the inflationary B-mode polarization of the cosmic microwave background (CMB) at degree angular scales. During three seasons of…

Precise measurements of the cosmic microwave background (CMB) are crucial in cosmology, because any proposed model of the universe must account for the features of this radiation. Of all CMB measurements that the scientific community has…

Instrumentation and Methods for Astrophysics · Physics 2013-07-08 Claudia Nones , Stefanos Marnieros , Alain Benoit , Laurent Bergé , Aurelien Bideau , Philippe Camus , Louis Dumoulin , Alessandro Monfardini , Olivier Rigaut

We use a custom-made calibrator to measure individual detectors' polarization angles of BICEP3, a small aperture telescope observing the cosmic microwave background (CMB) at 95GHz from the South Pole. We describe our calibration strategy…

BICEP3 is a $550~mm$ aperture telescope with cold, on-axis, refractive optics designed to observe at the $95~GHz$ band from the South Pole. It is the newest member of the BICEP/Keck family of inflationary probes specifically designed to…

BICEP2/Keck and SPIDER are cosmic microwave background (CMB) polarimeters targeting the B-mode polarization induced by primordial gravitational waves from inflation. They will be using planar arrays of polarization sensitive antenna-coupled…

Precision measurements of cosmic microwave background (CMB) polarization require extreme control of instrumental systematics. In a companion paper we have presented cosmological constraints from observations with the BICEP2 and Keck Array…

BICEP3 is a 550 mm-aperture refracting telescope for polarimetry of radiation in the cosmic microwave background at 95 GHz. It adopts the methodology of BICEP1, BICEP2 and the Keck Array experiments - it possesses sufficient resolution to…

The BICEP3 CMB Polarimeter is a small-aperture refracting telescope located at the South Pole and is specifically designed to search for the possible signature of inflationary gravitational waves in the Cosmic Microwave Background (CMB).…

We report on the design and performance of the BICEP3 instrument and its first three-year data set collected from 2016 to 2018. BICEP3 is a 52cm aperture, refracting telescope designed to observe the polarization of the cosmic microwave…

For the past decade, the BICEP/Keck collaboration has been operating a series of telescopes at the Amundsen-Scott South Pole Station measuring degree-scale $B$-mode polarization imprinted in the Cosmic Microwave Background (CMB) by…

[Abridged] Recent results from the BICEP, Keck Array and Planck Collaborations demonstrate that Galactic foregrounds are an unavoidable obstacle in the search for evidence of inflationary gravitational waves in the cosmic microwave…

Cosmology and Nongalactic Astrophysics · Physics 2016-04-07 Josquin Errard , Stephen M. Feeney , Hiranya V. Peiris , Andrew H. Jaffe

The BICEP/Keck series of experiments target the Cosmic Microwave Background at degree-scale resolution from the South Pole. Over the next few years, the "Stage-3" BICEP Array (BA) telescope will improve the program's frequency coverage and…

Instrumentation and Methods for Astrophysics · Physics 2023-07-19 Marion Dierickx , P. A. R. Ade , Zeeshan Ahmed , Mandana Amiri , Denis Barkats , Ritoban Basu Thakur , Colin A. Bischoff , Dominic Beck , James J. Bock , Victor Buza , James R. Cheshire , Jake Connors , James Cornelison , Michael Crumrine , Ari Jozef Cukierman , Edward Denison , Lionel Duband , Miranda Eiben , Sofia Fatigoni , Jeff P. Filippini , Christos Giannakopoulos , Neil Goeckner-Wald , David Goldfinger , James A. Grayson , Paul Grimes , Grantland Hall , George Halal , Mark Halpern , Emma Hand , Sam A. Harrison , Shawn Henderson , Sergi Hildebrandt , Gene C. Hilton , Johannes Hubmayr , Howard Hui , Kent D. Irwin , Jae Hwan Kang , Kirit S. Karkare , Sinan Kefeli , J. M. Kovac , Chao-Lin Kuo , King Lau , Erik M. Leitch , Amber Lennox , K , . G. Megerian , Lorenzo Minutolo , Lorenzo Moncelsi , Yuka Nakato , Toshiya Namikawa , H. T. Nguyen , Roger O'brient , Steven Palladino , Matthew Petroff , Nathan Precup , Thomas Prouve , Clement Pryke , Benjamin Racine , Carl D. Reintsema , Destiny Santalucia , Alessandro Schillaci , Benjamin Schmitt , Baibhav Singari , Ahmed Soliman , Tyler St Germaine , Bryan Steinbach , Rashmi Sudiwala , Keith L. Thompson , Carole Tucker , Anthony D. Turner , Caterina Umiltà , Clara Verges , Abigail G. Vieregg , Albert Wandui , Alexis C. Weber , Don Wiebe , Justin Willmert , Wai Ling K. Wu , Hung-I Yang , Ki Won Yoon , Edward Young , Cyndia Yu , Lingzhen Zeng , Cheng Zhang , Silvia Zhang

Characterization of the minute cosmic microwave background polarization signature requires multi-frequency, high-throughput precision instrument systems. We have previously described the detector fabrication of a 40 GHz focal plane and now…

We review advances in low temperature detector (LTD) arrays for Cosmic Microwave Background (CMB) polarization experiments, with a particular emphasis on imaging arrays. We briefly motivate the science case, which has spurred a large number…