Related papers: Plastic Laminate Antireflective Coatings for Milli…

Thermal Testing for Cryogenic CMB Instrument Optical Design

Observations of the Cosmic Microwave Background rely on cryogenic instrumentation with cold detectors, readout, and optics providing the low noise performance and instrumental stability required to make more sensitive measurements. It is…

Instrumentation and Methods for Astrophysics · Physics 2022-08-05 D. C. Goldfinger , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , D. Beck , C. A. Bischoff , J. J. Bock , V. Buza , J. Cheshire , J. Connors , J. Cornelison , M. Crumrine , A. J. Cukierman , E. V. Denison , M. I. Dierickx , L. Duband , M. Eiben , S. Fatigoni , J. P. Filippini , C. Giannakopoulos , N. Goeckner-Wald , J. Grayson , P. K. Grimes , G. Hall , G. Halal , M. Halpern , E. Hand , S. A. Harrison , S. Henderson , S. R. Hildebrandt , G. C. Hilton , J. Hubmayk , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , S. Kefeli , J. M. Kovac , C. L. Kuo , K. Lau , E. M. Leitch , A. Lennox , T. Liu , K. G. Megerian , L. Minutolo , L. Moncelsi , Y. Nakato , T. Namikawa , H. T. Nguyen , R. O'Brient , S. Palladino , M. A. Petroff , T. Prouve , C. Pryke , B. Racine , C. D. Reintsema , M. Salatino , A. Schillaci , B. L. Schmitt , B. Singari , A. Soliman , A. G. Smith , T. St. Germaine , B. Steinbach , R. V. Sudiwala , K. L. Thompson , C. Tsai , C. Tucker , A. D. Turner , C. Umiltà , C. Vergès , A. G. Vieregg , A. Wandui , A. C. Weber , D. V. Wiebe , J. Willmert , W. L. K. Wu , H. Yang , K. W. Yoon , E. Young , C. Yu , L. Zeng , C. Zhang , S. Zhang

Phased Array Feed Calibration, Beamforming and Imaging

Phased array feeds (PAFs) for reflector antennas offer the potential for increased reflector field of view and faster survey speeds. To address some of the development challenges that remain for scientifically useful PAFs, including…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 Jonathan Landon , Michael Elmer , Jacob Waldron , David Jones , Alan Stemmons , Brian D. Jeffs , Karl F. Warnick , J. Richard Fisher , Roger D. Norrod

The Latest Constraints on Inflationary B-modes from the BICEP/Keck Telescopes

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…

Cosmology and Nongalactic Astrophysics · Physics 2023-01-18 Keck Collaboration , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , D. Beck , C. Bischoff , J. J. Bock , H. Boenish , E. Bullock , V. Buza , J. R. Cheshire , J. Connors , J. Cornelison , M. Crumrine , A. Cukierman , E. V. Denison , M. Dierickx , L. Duband , M. Eiben , S. Fatigoni , J. P. Filippini , S. Fliescher , C. Giannakopoulos , N. Goeckner-Wald , D. C. Goldfinger , J. Grayson , P. Grimes , G. Halal , G. Hall , M. Halpern , E. Hand , S. Harrison , S. Henderson , S. R. Hildebrandt , G. C. Hilton , J. Hubmayr , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , S. Kefeli , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , K. Lau , E. M. Leitch , A. Lennox , K. G. Megerian , L. Minutolo , L. Moncelsi , Y. Nakato , T. Namikawa , H. T. Nguyen , R. O'Brient , R. W. Ogburn , S. Palladino , M. Petroff , T. Prouve , C. Pryke , B. Racine , C. D. Reintsema , S. Richter , A. Schillaci , B. L. Schmitt , R. Schwarz , C. D. Sheehy , B. Singari , A. Soliman , T. St Germaine , B. Steinbach , R. V. Sudiwala , G. P. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. Turner , C. Umilta , C. Verges , A. G. Vieregg , A. Wandui , A. C. Weber , D. V. Wiebe , J. Willmert , C. L. Wong , W. L. K. Wu , H. Yang , K. W. Yoon , E. Young , C. Yu , L. Zeng , C. Zhang , S. Zhang

Material survey for millimeter-wave absorber using 3-D printed mold

Radio absorptive materials (RAMs) are key elements for receivers in the millimeter-wave range. For astronomical applications, cryogenic receivers are widely used to achieve a high-sensitivity. These cryogenic receivers, in particular the…

Instrumentation and Methods for Astrophysics · Physics 2021-09-08 T. Otsuka , S. Adachi , M. Hattori , Y. Sakurai , O. Tajima

Design and characterization of the POLARBEAR-2b and POLARBEAR-2c cosmic microwave background cryogenic receivers

The POLARBEAR-2/Simons Array Cosmic Microwave Background (CMB) polarization experiment is an upgrade and expansion of the existing POLARBEAR-1 (PB-1) experiment, located in the Atacama desert in Chile. Along with the CMB temperature and…

Instrumentation and Methods for Astrophysics · Physics 2018-06-15 Logan Howe , Calvin Tsai , Lindsay Lowry , Kam Arnold , Gabriele Coppi , John Groh , Xiaoyu Guo , Brian Keating , Adrian Lee , Andrew J. May , Lucio Piccirillo , Nathan Stebor , Grant Teply

Concept Design of Low Frequency Telescope for CMB B-mode Polarization satellite LiteBIRD

LiteBIRD has been selected as JAXA's strategic large mission in the 2020s, to observe the cosmic microwave background (CMB) $B$-mode polarization over the full sky at large angular scales. The challenges of LiteBIRD are the wide…

Instrumentation and Methods for Astrophysics · Physics 2021-01-19 Y. Sekimoto , P. A. R. Ade , A. Adler , E. Allys , K. Arnold , D. Auguste , J. Aumont , R. Aurlien , J. Austermann , C. Baccigalupi , A. J. Banday , R. Banerji , R. B. Barreiro , S. Basak , J. Beall , D. Beck , S. Beckman , J. Bermejo , P. de Bernardis , M. Bersanelli , J. Bonis , J. Borrill , F. Boulanger , S. Bounissou , M. Brilenkov , M. Brown , M. Bucher , E. Calabrese , P. Campeti , A. Carones , F. J. Casas , A. Challinor , V. Chan , K. Cheung , Y. Chinone , J. F. Cliche , L. Colombo , F. Columbro , J. Cubas , A. Cukierman , D. Curtis , G. D'Alessandro , N. Dachlythra , M. De Petris , C. Dickinson , P. Diego-Palazuelos , M. Dobbs , T. Dotani , L. Duband , S. Duff , J. M. Duval , K. Ebisawa , T. Elleflot , H. K. Eriksen , J. Errard , T. Essinger-Hileman , F. Finelli , R. Flauger , C. Franceschet , U. Fuskeland , M. Galloway , K. Ganga , J. R. Gao , R. Genova-Santos , M. Gerbino , M. Gervasi , T. Ghigna , E. Gjerløw , M. L. Gradziel , J. Grain , F. Grupp , A. Gruppuso , J. E. Gudmundsson , T. de Haan , N. W. Halverson , P. Hargrave , T. Hasebe , M. Hasegawa , M. Hattori , M. Hazumi , S. Henrot-Versillé , D. Herman , D. Herranz , C. A. Hill , G. Hilton , Y. Hirota , E. Hivon , R. A. Hlozek , Y. Hoshino , E. de la Hoz , J. Hubmayr , K. Ichiki , T. iida , H. Imada , K. Ishimura , H. Ishino , G. Jaehnig , T. Kaga , S. Kashima , N. Katayama , A. Kato , T. Kawasaki , R. Keskitalo , T. Kisner , Y. Kobayashi , N. Kogiso , A. Kogut , K. Kohri , E. Komatsu , K. Komatsu , K. Konishi , N. Krachmalnicoff , I. Kreykenbohm , C. L. Kuo , A. Kushino , L. Lamagna , J. V. Lanen , M. Lattanzi , A. T. Lee , C. Leloup , F. Levrier , E. Linder , T. Louis , G. Luzzi , T. Maciaszek , B. Maffei , D. Maino , M. Maki , S. Mandelli , E. Martinez-Gonzalez , S. Masi , T. Matsumura , A. Mennella , M. Migliaccio , Y. Minanmi , K. Mitsuda , J. Montgomery , L. Montier , G. Morgante , B. Mot , Y. Murata , J. A. Murphy , M. Nagai , Y. Nagano , T. Nagasaki , R. Nagata , S. Nakamura , T. Namikawa , P. Natoli , S. Nerval , T. Nishibori , H. Nishino , C. O'Sullivan , H. Ogawa , H. Ogawa , S. Oguri , H. Ohsaki , I. S. Ohta , N. Okada , N. Okada , L. Pagano , A. Paiella , D. Paoletti , G. Patanchon , J. Peloton , F. Piacentini , G. Pisano , G. Polenta , D. Poletti , T. Prouvé , G. Puglisi , D. Rambaud , C. Raum , S. Realini , M. Reinecke , M. Remazeilles , A. Ritacco , G. Roudil , J. A. Rubino-Martin , M. Russell , H. Sakurai , Y. Sakurai , M. Sandri , M. Sasaki , G. Savini , D. Scott , J. Seibert , B. Sherwin , K. Shinozaki , M. Shiraishi , P. Shirron , G. Signorelli , G. Smecher , S. Stever , R. Stompor , H. Sugai , S. Sugiyama , A. Suzuki , J. Suzuki , T. L. Svalheim , E. Switzer , R. Takaku , H. Takakura , S. Takakura , Y. Takase , Y. Takeda , A. Tartari , E. Taylor , Y. Terao , H. Thommesen , K. L. Thompson , B. Thorne , T. Toda , M. Tomasi , M. Tominaga , N. Trappe , M. Tristram , M. Tsuji , M. Tsujimoto , C. Tucker , J. Ullom , G. Vermeulen , P. Vielva , F. Villa , M. Vissers , N. Vittorio , I. Wehus , J. Weller , B. Westbrook , J. Wilms , B. Winter , E. J. Wollack , N. Y. Yamasaki , T. Yoshida , J. Yumoto , M. Zannoni , A. Zonca

The Atacama B-Mode Search: CMB Polarimetry with Transition-Edge-Sensor Bolometers

The Atacama B-mode Search (ABS) experiment is a 145 GHz polarimeter designed to measure the B-mode polarization of the Cosmic Microwave Background (CMB) at large angular scales. The ABS instrument will ship to the Atacama Desert of Chile…

Instrumentation and Methods for Astrophysics · Physics 2010-08-26 T. Essinger-Hileman , J. W. Appel , J. A. Beall , H. M. Cho , J. Fowler , M. Halpern , M. Hasselfield , K. D. Irwin , T. A. Marriage , M. D. Niemack , L. Page , L. P. Parker , S. Pufu , S. T. Staggs , O. Stryzak , C. Visnjic , K. W. Yoon , Y. Zhao

The design of the Ali CMB Polarization Telescope receiver

Ali CMB Polarization Telescope (AliCPT-1) is the first CMB degree-scale polarimeter to be deployed on the Tibetan plateau at 5,250m above sea level. AliCPT-1 is a 90/150 GHz 72 cm aperture, two-lens refracting telescope cooled down to 4 K.…

Instrumentation and Methods for Astrophysics · Physics 2021-01-26 Maria Salatino , Jason E. Austermann , Keith L. Thompson , Peter A. R. Ade , Xiran Bai , James A. Beall , Dan T. Becker , Yifu Cai , Zhi Chang , Ding Chen , Pisin Chen , Jake Connors , Jacques Delabrouille , Bradley Dober , Shannon M. Duff , Guanhua Gao , Shamik Ghosh , Richard C. Givhan , Gene C. Hilton , Bin Hu , Johannes Hubmayr , Ethan D. Karpel , Chao-Lin Kuo , Hong Li , Mingzhe Li , Si-Yu Li , Xufang Li , Yongping Li , Michael Link , Hao Liu , Liyong Liu , Yang Liu , Fangjun Lu , Xuefeng Lu , Tammy Lukas , John A. B. Mates , Justin Mathewson , Philip Mauskopf , Jeremy Meinke , Jordi A. Montana-Lopez , Jenna Moore , Jingyan Shi , Adrian K. Sinclair , Ryan Stephenson , Weishin Sun , Yu-Han Tseng , Carole Tucker , Joel N. Ullom , Leila R. Vale , Jeff van Lanen , Michael R. Vissers , Samantha Walker , Bo Wang , Guofeng Wang , Jiaxin Wang , Erik Weeks , Di Wu , Yi-Han Wu , Junqing Xia , He Xu , Ji Yao , Yongqiang Yao , Ki Won Yoon , Bin Yue , Hua Zhai , Aimei Zhang , Laiyu Zhang , Le Zhang , Pengjie Zhang , Tong Zhang , Xinmin Zhang , Yifei Zhang , Yongjie Zhang , Gong-Bo Zhao , Wen Zhao

Broadband plasma spray anti-reflection coating technology for millimeter-wave astrophysics

We present a broadband plasma spray anti-reflection (AR) coating technology for millimeter-wave astrophysics experiments with large-format, cryogenic optics. By plasma spraying alumina- and silica-based powders, we have produced coatings of…

Instrumentation and Methods for Astrophysics · Physics 2023-03-22 Oliver Jeong , Richard Plambeck , Christopher Raum , Aritoki Suzuki , Adrian T. Lee

Results and Limits of Time Division Multiplexing for the BICEP Array High Frequency Receivers

Time-Division Multiplexing is the readout architecture of choice for many ground and space experiments, as it is a very mature technology with proven outstanding low-frequency noise stability, which represents a central challenge in…

Instrumentation and Methods for Astrophysics · Physics 2024-04-26 S. Fatigoni , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , C. A. Bischoff , D. Beck , J. J. Bock , V. Buza , J. Cheshire , J. Connors , J. Cornelison , M. Crumrine , A. J. Cukierman , E. V. Denison , M. I. Dierickx , L. Duband , M. Eiben , J. P. Filippini , A. Fortes , M. Gao , C. Giannakopoulos , N. Goeckner-Wald , D. C. Goldfinger , J. A. Grayson , P. K. Grimes , G. Hall , G. Halal , M. Halpern , E. Hand , S. A. Harrison , S. Handerson , S. R. Hildebrandt , G. C. Hilton , J. Hubmayr , H. Hui , K. D. Irwin , J. H. Kang , K. S. Karkare , S. Kefeli , J. M. Kovac , C. L. Kuo , K. Lau , A. Lennox , T. Liu , K. G. Megerian , O. Y. Miller , L. Minutolo , L. Moncelsi , Y. Nakato , H. T. Nguyen , R. O Brient , S. Palladino , M. A. Petroff , A. Polish , T. Prouve , C. Pryke , B. Racine , C. D. Reintsema , T. Romand , M. Salatino , A. Schillaci , B. L. Schmitt , B. Singari , A. Soliman , T. St. Germaine , A. Steiger , B. Steinbach , R. Sudiwala , K. L. Thompson , C. Tsai , C. Tucker , A. D. Turner , C. Umiltà , C. Vèrges , A. Wandui , A. C. Weber , D. V. Wiebe , J. Willmert , W. L. K. Wu , E. Yang , E. Young , C. Yu , L. Zeng , C. Zhang , S. Zhang

Broadband Millimeter-Wave Anti-Reflection Coatings on Silicon Using Pyramidal Sub-Wavelength Structures

We used two novel approaches to produce sub-wavelength structure (SWS) anti-reflection coatings (ARC) on silicon for the millimeter and sub-millimeter (MSM) wave band: picosecond laser ablation and dicing with beveled saws. We produced…

Instrumentation and Methods for Astrophysics · Physics 2017-06-09 Karl Young , Qi Wen , Shaul Hanany , Hiroaki Imada , Jürgen Koch , Tomotake Matsumura , Oliver Suttmann , Viktor Schütz

A Millimeter-Wave Galactic Plane Survey With The BICEP Polarimeter

In addition to its potential to probe the Inflationary cosmological paradigm, millimeter-wave polarimetry is a powerful tool for studying the Milky Way galaxy's composition and magnetic field structure. Towards this end, presented here are…

Astrophysics of Galaxies · Physics 2015-05-27 E. M. Bierman , T. Matsumura , C. D. Dowell , B. G. Keating , P. Ade , D. Barkats , D. Barron , J. O. Battle , J. J. Bock , H. C. Chiang , T. L. Culverhouse , L. Duband , E. F. Hivon , W. L. Holzapfel , V. V. Hristov , J. P. Kaufman , J. M. Kovac , C. L. Kuo , A. E. Lange , E. M. Leitch , P. V. Mason , N. J. Miller , H. T Nguyen , C. Pryke , S. Richter , G. M. Rocha , C. Sheehy , Y. D. Takahashi , K. W. Yoon

Constraining Inflation with the BICEP/Keck CMB Polarization Experiments

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"…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-28 Keck Collaboration , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , C. A. Bischoff , D. Beck , J. J. Bock , H. Boenish , V. Buza , J. R. Cheshire , J. Connors , J. Cornelison , M. Crumrine , A. Cukierman , E. V. Denison , M. Dierickx , L. Duband , M. Eiben , B. Elwood , S. Fatigoni , J. P. Filippini , M. Gao , C. Giannakopoulos , N. Goeckner-Wald , D. C. Goldfinger , J. Grayson , P. Grimes , G. Hall , G. Halal , M. Halpern , E. Hand , S. Harrison , S. Henderson , J. Hubmayr , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , S. Kefeli , J. M. Kovac , C L. Kuo , K. Lau , A. Lennox , T. Liu , K. G. Megerian , L. Minutolo , L. Moncelsi , Y. Nakato , T. Namikawa , H. T. Nguyen , R. O'Brient , S. Palladino , M. Petroff , A. Polish , N. Precup , T. Prouve , C. Pryke , B. Racine , C. D. Reintsema , T. Romand , M. Salatino , A. Schillaci , B. L. Schmitt , B. Singari , A. Soliman , T. St. Germaine , A. Steiger , B. Steinbach , R. V. Sudiwala , K. L. Thompson , C. Tucker , A. D. Turner , C. Vergès , A. G. Vieregg , A. Wandui , A. C. Weber , J. Willmert , W. L. K. Wu , H. Yang , K. W. Yoon , E. Young , C. Yu , L. Zeng , C. Zhang , S. Zhang

The EBEX Balloon Borne Experiment - Optics, Receiver, and Polarimetry

The E and B Experiment (EBEX) was a long-duration balloon-borne cosmic microwave background polarimeter that flew over Antarctica in 2013. We describe the experiment's optical system, receiver, and polarimetric approach, and report on their…

Instrumentation and Methods for Astrophysics · Physics 2018-11-14 The EBEX Collaboration , Asad M. Aboobaker , Peter Ade , Derek Araujo , François Aubin , Carlo Baccigalupi , Chaoyun Bao , Daniel Chapman , Joy Didier , Matt Dobbs , Christopher Geach , Will Grainger , Shaul Hanany , Kyle Helson , Seth Hillbrand , Johannes Hubmayr , Andrew Jaffe , Bradley Johnson , Terry Jones , Jeff Klein , Andrei Korotkov , Adrian Lee , Lorne Levinson , Michele Limon , Kevin MacDermid , Tomotake Matsumura , Amber D. Miller , Michael Milligan , Kate Raach , Britt Reichborn-Kjennerud , Ilan Sagiv , Giorgio Savini , Locke Spencer , Carole Tucker , Gregory S. Tucker , Ben Westbrook , Karl Young , Kyle Zilic

Development of large radii half-wave plates for CMB satellite missions

The successful European Space Agency (ESA) Planck mission has mapped the Cosmic Microwave Background (CMB) temperature anisotropy with unprecedented accuracy. However, Planck was not designed to detect the polarised components of the CMB…

Instrumentation and Methods for Astrophysics · Physics 2014-10-01 G. Pisano , B. Maffei , M. W. Ng , V. Haynes , M. Brown , F. Noviello , P. de Bernardis , S. Masi , F. Piacentini , L. Pagano , M. Salatino , B. Ellison , M. Henry , P. de Maagt , B. Shortt

BICEP / Keck XII: Constraints on axion-like polarization oscillations in the cosmic microwave background

We present a search for axion-like polarization oscillations in the cosmic microwave background (CMB) with observations from the Keck Array. A local axion field induces an all-sky, temporally sinusoidal rotation of CMB polarization. A CMB…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-17 Keck Collaboration , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , C. A. Bischoff , J. J. Bock , H. Boenish , E. Bullock , V. Buza , J. R. Cheshire , J. Connors , J. Cornelison , M. Crumrine , A. Cukierman , M. Dierickx , L. Duband , S. Fatigoni , J. P. Filippini , S. Fliescher , N. Goeckner-Wald , J. Grayson , G. Hall , M. Halpern , S. Harrison , S. Henderson , S. R. Hildebrandt , G. C. Hilton , J. Hubmayr , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , B. G. Keating , S. Kefeli , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , K. Lau , E. M. Leitch , K. G. Megerian , L. Moncelsi , T. Namikawa , C. B. Netterfield , H. T. Nguyen , R. O'Brient , R. W. Ogburn , S. Palladino , T. Prouve , C. Pryke , B. Racine , C. D. Reintsema , S. Richter , A. Schillaci , B. L. Schmitt , R. Schwarz , C. D. Sheehy , A. Soliman , T. St. Germaine , B. Steinbach , R. V. Sudiwala , G. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. D. Turner , C. Umilta , A. G. Vieregg , A. Wandui , A. C. Weber , D. V. Wiebe , J. Willmert , C. L. Wong , W. L. K. Wu , H. Yang , K. W. Yoon , E. Young , C. Yu , L. Zeng , C. Zhang

Design and characterization of new 90 GHz detectors for the Cosmology Large Angular Scale Surveyor (CLASS)

The Cosmology Large Angular Scale Surveyor (CLASS) is a polarization-sensitive telescope array located at an altitude of 5,200 m in the Chilean Atacama Desert. CLASS is designed to measure "E-mode" (even parity) and "B-mode" (odd parity)…

Instrumentation and Methods for Astrophysics · Physics 2022-08-11 Carolina Núñez , John W. Appel , Sarah Marie Bruno , Rahul Datta , Aamir Ali , Charles L. Bennett , Sumit Dahal , Jullianna Denes Couto , Kevin L. Denis , Joseph Eimer , Francisco Espinoza , Tom Essinger-Hileman , Kyle Helson , Jeffrey Iuliano , Tobias A. Marriage , Carolina Morales Pérez , Deniz Augusto Nunes Valle , Matthew A. Petroff , Karwan Rostem , Rui Shi , Duncan J. Watts , Edward J. Wollack , Zhilei Xu

Fabry-P\'{e}rot open resonant cavities for measuring the dielectric parameters of mm-wave optical materials

As millimeter-wave cosmology experiments refine their optical chains, precisely characterizing their optical materials under cryogenic conditions becomes increasingly important. For instance, as the aperture sizes and bandwidths of…

Optics · Physics 2024-11-05 Brodi D. Elwood , Paul K. Grimes , John Kovac , Miranda Eiben , Grant Meiners

Prototype sub-wavelength structure anti-reflection coating on alumina filters for ground-based CMB telescopes

We present designs and fabrication of sub-wavelength anti-reflection (AR) structures on alumina for infrared absorptive filters with passbands near 30, 125, and 250 GHz. These bands are widely used by ground-based instruments measuring the…

Instrumentation and Methods for Astrophysics · Physics 2025-05-19 Kosuke Aizawa , Ryosuke Akizawa , Scott Cray , Shaul Hanany , Shotaro Kawano , Jürgen Koch , Kuniaki Konishi , Rex Lam , Tomotake Matsumura , Haruyuki Sakurai , Ryota Takaku

BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season

We present results from an analysis of all data taken by the BICEP2, Keck Array and BICEP3 CMB polarization experiments up to and including the 2018 observing season. We add additional Keck Array observations at 220 GHz and BICEP3…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-13 Keck Collaboration , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , D. Beck , C. Bischoff , J. J. Bock , H. Boenish , E. Bullock , V. Buza , J. R. Cheshire , J. Connors , J. Cornelison , M. Crumrine , A. Cukierman , E. V. Denison , M. Dierickx , L. Duband , M. Eiben , S. Fatigoni , J. P. Filippini , S. Fliescher , N. Goeckner-Wald , D. C. Goldfinger , J. Grayson , P. Grimes , G. Halal , G. Hall , M. Halpern , E. Hand , S. Harrison , S. Henderson , S. R. Hildebrandt , G. C. Hilton , J. Hubmayr , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , S. Kefeli , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , K. Lau , E. M. Leitch , A. Lennox , K. G. Megerian , L. Minutolo , L. Moncelsi , Y. Nakato , T. Namikawa , H. T. Nguyen , R. O'Brient , R. W. Ogburn , S. Palladino , T. Prouve , C. Pryke , B. Racine , C. D. Reintsema , S. Richter , A. Schillaci , B. L. Schmitt , R. Schwarz , C. D. Sheehy , A. Soliman , T. St Germaine , B. Steinbach , R. V. Sudiwala , G. P. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. Turner , C. Umilta , C. Verges , A. G. Vieregg , A. Wandui , A. C. Weber , D. V. Wiebe , J. Willmert , C. L. Wong , W. L. K. Wu , H. Yang , K. W. Yoon , E. Young , C. Yu , L. Zeng , C. Zhang , S. Zhang