Prof. Masashi Hazumi Profile

Prof. Masashi Hazumi

Professor at KEK

SPIE Involvement:

Conference Program Committee | Author

Publications (47)

Proceedings Article | 10 September 2024 Presentation + Paper

Presentation + Paper

The LiteBIRD mission to explore cosmic inflation

T. Ghigna, A. Adler, K. Aizawa, H. Akamatsu, R. Akizawa, E. Allys, A. Anand, J. Aumont, J. Austermann, S. Azzoni, C. Baccigalupi, M. Ballardini, A. Banday, R. Barreiro, N. Bartolo, S. Basak, A. Basyrov, S. Beckman, M. Bersanelli, M. Bortolami, F. Bouchet, T. Brinckmann, P. Campeti, E. Carinos, A. Carones, F. Casas, K. Cheung, Y. Chinone, L. Clermont, F. Columbro, A. Coppolecchia, D. Curtis, P. de Bernardis, T. de Haan, E. de la Hoz, M. De Petris, S. Della Torre, G. Delle Monache, E. Di Giorgi, C. Dickinson, P. Diego-Palazuelos, J. Díaz García, M. Dobbs, T. Dotani, H. Eriksen, J. Errard, T. Essinger-Hileman, N. Farias, E. Ferreira, C. Franceschet, U. Fuskeland, G. Galloni, M. Galloway, K. Ganga, M. Gerbino, M. Gervasi, R. Génova-Santos, S. Giardiello, C. Gimeno-Amo, E. Gjerløw, R. González González, L. Grandsire, A. Gruppuso, N. Halverson, P. Hargrave, S. Harper, M. Hazumi, S. Henrot-Versillé, L. Hergt, D. Herranz, E. Hivon, R. Hlozek, T. Hoang, J. Hubmayr, K. Ichiki, K. Ikuma, H. Ishino, G. Jaehnig, B. Jost, K. Kohri, K. Konishi, L. Lamagna, M. Lattanzi, C. Leloup, F. Levrier, A. Lanoppan, G. Luzzi, J. Macias-Perez, B. Maffei, E. Marchitelli, E. Martínez-González, S. Masi, S. Matarrese, T. Matsumura, S. Micheli, M. Migliaccio, M. Monelli, L. Montier, G. Morgante, L. Mousset, Y. Nagano, R. Nagata, P. Natoli, A. Novelli, F. Noviello, I. Obata, A. Occhiuzzi, K. Odagiri, R. Omae, L. Pagano, A. Paiella, D. Paoletti, G. Pascual-Cisneros, G. Patanchon, V. Pavlidou, F. Piacentini, M. Piat, G. Piccirilli, M. Pinchera, G. Pisano, L. Porcelli, N. Raffuzzi, C. Raum, M. Remazeilles, A. Ritacco, J. Rubino-Martin, M. Ruiz-Granda, Y. Sakurai, G. Savini, D. Scott, Y. Sekimoto, M. Shiraishi, G. Signorelli, S. Stever, R. Sullivan, A. Suzuki, R. Takaku, H. Takakura, S. Takakura, Y. Takase, A. Tartari, K. Tassis, K. Thompson, M. Tomasi, M. Tristram, C. Tucker, L. Vacher, B. van Tent, P. Vielva, K. Watanuki, I. Wehus, B. Westbrook, G. Weymann-Despres, B. Winter, E. Wollack, A. Zacchei, M. Zannoni, Y. Zhou

Proceedings Volume 13092, 1309228 (2024) https://doi.org/10.1117/12.3021377

KEYWORDS: Telescopes, Physics, Polarization, Design, Sensors, Cosmology, Satellites, Astronomy

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Proceedings Article | 24 August 2024 Poster

Poster

Fabrication of low frequency detector arrays with integrated cosmic ray mitigation structures for the LiteBIRD CMB experiment

Christopher Raum, Shawn Beckman, Nicole Farias, Tommaso Ghigna, Nils Halverson, Masashi Hazumi, Johannes Hubmayr, Greg Jaehnig, Adrian Lee, Samantha Stever, Aritoki Suzuki, Keith Thompson, Ben Westbrook

Proceedings Volume 13092, 1309275 (2024) https://doi.org/10.1117/12.3018488

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Proceedings Article | 17 August 2024 Presentation

Presentation

Updated forecasts of cosmic ray systematic effects, simple deglitching, and current outlook for the LiteBIRD space mission

Samantha Stever, Mayu Tominaga, Clementine Azam, Tommaso Ghigna, Giuseppe Puglisi, Masahiro Tsujimoto, Maurizio Tomasi, Tomotake Matsumura, Hirokazu Ishino, Guillaume Patanchon, Masashi Hazumi

Proceedings Volume PC13102, PC1310206 (2024) https://doi.org/10.1117/12.3020013

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Proceedings Article | 16 August 2024 Presentation + Paper

Presentation + Paper

Commissioning the CMB polarization telescope GroundBIRD with the full set of detectors

Miku Tsujii, Jochem J. Baselmans, Jihoon Choi, Antonio H. Coppens, Alessandro Fasano, Ricardo Tanausú Génova-Santos, Makoto Hattori, Masashi Hazumi, Shunsuke Honda, Takuji Ikemitsu, Hidesato Ishida, Hikaru Ishitsuka, Hoyong Jeong, Yonggil Jo, Kenichi Karatsu, Keisuke Kataoka, Kenji Kiuchi, Junta Komine, Ryo Koyano, Hiroki Kutsuma, Kyungmin Lee, Satoru Mima, Makoto Nagai, Taketo Nagasaki, Masato Naruse, Shugo Oguri, Chiko Otani, Michael Peel, Rafael Rebolo, José Alberto Rubiño-Martín, Yutaro Sekimoto, Yoshinori Sueno, Junya Suzuki, Tohru Taino, Osamu Tajima, Tomonaga Tanaka, David Thoen, Nozomu Tomita, Yuta Tsuji, Tomohisa Uchida, Eunil Won, Mitsuhiro Yoshida

Proceedings Volume 13102, 1310205 (2024) https://doi.org/10.1117/12.3019544

KEYWORDS: Sensors, Telescopes, Polarization, Observatories, Data acquisition, Visualization, Signal detection, Jupiter, Environmental monitoring, Contamination

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Proceedings Article | 16 August 2024 Poster + Paper

Poster + Paper

Development of the low-frequency telescope focal plane detector arrays for LiteBIRD

Tommaso Ghigna, Aritoki Suzuki, Benjamin Westbrook, Christopher Raum, Hiroki Akamatsu, Shawn Beckman, Nicole Farias, Tijmen de Haan, Nils Halverson, Masashi Hazumi, Johannes Hubmayr, Greg Jaehnig, Adrian Lee, Samantha Stever, Yu Zhou

Proceedings Volume 13102, 131020Y (2024) https://doi.org/10.1117/12.3019287

KEYWORDS: Antennas, Bandpass filters, Telescopes, Bolometers

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SPIE Journal Paper | 27 January 2024 Open Access

Open Access

Design and performance of a gain calibration system for the POLARBEAR-2a receiver system at the Simons Array cosmic microwave background experiment

Daisuke Kaneko, Sayuri Takatori, Masaya Hasegawa, Masashi Hazumi, Yuki Inoue, Oliver Jeong, Nobuhiko Katayama, Adrian Lee, Frederick Matsuda, Haruki Nishino, Praween Siritanasak, Aritoki Suzuki, Satoru Takakura, Takayuki Tomaru

JATIS, Vol. 10, Issue 01, 018003, (January 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.1.018003

KEYWORDS: Calibration, Scanning tunneling microscopy, Sensors, Polarization, Design, Bolometers, Modulation frequency, Telescopes, Planets, Sensor calibration

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SPIE Journal Paper | 6 September 2022

High-precision temperature monitoring system for room-temperature equipment in astrophysical observations

Daiki Tanabe, Masaya Hasegawa, Masashi Hazumi, Nobuhiko Katayama, Shuhei Kikuchi, Adrian Lee, Haruki Nishino, Satoru Takakura

JATIS, Vol. 8, Issue 03, 036003, (September 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.3.036003

KEYWORDS: Mirrors, Sensors, Temperature metrology, Signal detection, Electronics, Polarization, Bolometers, Telescopes, Detector arrays, Resistance

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

LiteBIRD low- and mid-frequency detectors: design and status

G. Jaehnig, K. Arnold, J. Austermann, J. Beall, D. Becker, J. Connors, S. Duff, N. Halverson, M. Hazumi, G. Hilton, J. Hubmayr, C. L. Kuo, A. Lee, M. Link, C. Raum, S. Stevenson, A. Suzuki, K. Thompson, J. Van Lanen, M. Vissers, S. Walker, B. Westbrook

Proceedings Volume 12190, 121900T (2022) https://doi.org/10.1117/12.2630393

KEYWORDS: Sensors, Bolometers, Telescopes, Antennas, Bandpass filters, Polarization, Optical testing, Detector arrays, Resistors, Temperature metrology

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Proceedings Article | 29 August 2022 Poster

Poster

Instrumental Performance and Scientific Requirements of Polarization Modulation Unit for LiteBIRD low frequency telescope

Yuki Sakurai, Tomotake Matsumura, Nobuhiko Katayama, Kunimoto Komatsu, Ryota Takaku, Shinya Sugiyama, Yurika Hoshino, Takashi Hasebe, Tommaso Ghigna, Thuong Hoang, Teruhito Iida, Yusuke Takase, Hirokazu Ishino, Masashi Hazumi, Hiroyuki Ohsaki, Yutaka Terao, Takemi Onoue, Satsuki Okumura, Kuniaki Konishi, Junji Yumoto, Haruyuki Sakurai, Makoto Gonokami, Akito Kusaka

Proceedings Volume PC12190, PC121901Z (2022) https://doi.org/10.1117/12.2629102

KEYWORDS: Telescopes, Polarization, Modulation, Satellites, Prototyping, Signal detection, Sensors, Sapphire, Refractor telescopes, Reflector telescopes

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Proceedings Article | 21 December 2020 Presentation + Paper

Presentation + Paper

LiteBIRD satellite: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization

M. Hazumi, P.A.R. Ade, A. Adler, E. Allys, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, C. Baccigalupi, A. Banday, R. Banjeri, R. 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. Casas, A. Challinor, V. Chan, K. Cheung, Y. Chinone, J. 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. Duval, K. Ebisawa, T. Elleflot, H. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, M. Galloway, K. Ganga, J. Gao, R. Genova-Santos, M. Gerbino, M. Gervasi, T. Ghigna, E. Gjerløw, M. Gradziel, J. Grain, F. Grupp, A. Gruppuso, J. Gudmundsson, T. de Haan, N. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, S. Henrot-Versillé, D. Herman, D. Herranz, C. Hill, G. Hilton, Y. Hirota, E. Hivon, R. 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. Lanen, M. Lattanzi, A. 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. Minami, K. Mitsuda, J. Montgomery, L. Montier, G. Morgante, B. Mot, Y. Murata, J. Murphy, M. Nagai, Y. Nagano, T. Nagasaki, R. Nagata, S. Nakamura, T. Namikawa, P. Natoli, S. Nerval, T. Nishibori, H. Nishino, F. Noviello, C. O'Sullivan, H. Ogawa, S. Oguri, H. Ohsaki, I. Ohta, 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. Rubino-Martin, M. Russell, H. Sakurai, Y. Sakurai, M. Sandri, M. Sasaki, G. Savini, D. Scott, J. Seibert, Y. Sekimoto, 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. Svalheim, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takase, Y. Takeda, A. Tartari, E. Taylor, Y. Terao, H. Thommesen, K. 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. Wollack, N. Yamasaki, T. Yoshida, J. Yumoto, M. Zannoni, A. Zonca

Proceedings Volume 11443, 114432F (2020) https://doi.org/10.1117/12.2563050

KEYWORDS: Polarization, Satellites, Microwave radiation, Telescopes, Algorithm development, Refractor telescopes, Rockets, Quantum physics, Astrophysics, Spatial resolution

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Proceedings Article | 16 December 2020 Presentation + Paper

Presentation + Paper

Concept design of low frequency telescope for CMB B-mode polarization satellite LiteBIRD

Y. Sekimoto, P. A. Ade, A. Adler, E. Allys, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, C. Baccigalupi, A. Banday, R. Banerji, R. 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. 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. 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. Gradziel, J. Grain, F. Grupp, A. Gruppuso, J. Gudmundsson, T. de Haan, N. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versillé, D. Herman, D. Herranz, C. Hill, G. Hilton, Y. Hirota, E. Hivon, R. 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. Lanen, M. Lattanzi, A. 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, S. Oguri, H. Ohsaki, I. Ohta, 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. Svalheim, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takase, Y. Takeda, A. Tartari, E. Taylor, Y. Terao, H. Thommesen, K. 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. Wollack, N. Yamasaki, T. Yoshida, J. Yumoto, M. Zannoni, A. Zonca

Proceedings Volume 11453, 1145310 (2020) https://doi.org/10.1117/12.2561841

KEYWORDS: Telescopes, Polarization, Optical instrument design, Satellites, Stray light, Antennas, Reflectors, Microwave radiation, Spatial resolution, Diffraction

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Proceedings Article | 15 December 2020 Presentation + Paper

Presentation + Paper

Overview of the medium and high frequency telescopes of the LiteBIRD space mission

L. Montier, B. Mot, P. de Bernardis, B. Maffei, G. Pisano, F. Columbro, J. Gudmundsson, S. Henrot-Versillé, L. Lamagna, J. Montgomery, T. Prouvé, M. Russell, G. Savini, S. Stever, K. Thompson, M. Tsujimoto, C. Tucker, B. Westbrook, P. A. R. Ade, A. Adler, E. Allys, K. Arnold, D. Auguste, J. Aumont, R. Aurlien, J. Austermann, C. Baccigalupi, A. Banday, R. Banerji, R. Barreiro, S. Basak, J. Beall, D. Beck, S. Beckman, J. Bermejo, M. Bersanelli, J. Bonis, J. Borrill, F. Boulanger, S. Bounissou, M. Brilenkov, M. Brown, M. Bucher, E. Calabrese, P. Campeti, A. Carones, F. Casas, A. Challinor, V. Chan, K. Cheung, Y. Chinone, J. Cliche, L. Colombo, 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. Duval, K. Ebisawa, T. Elleflot, H. Eriksen, J. Errard, T. Essinger-Hileman, F. Finelli, R. Flauger, C. Franceschet, U. Fuskeland, M. Galloway, K. Ganga, J. Gao, R. Genova-Santos, M. Gerbino, M. Gervasi, T. Ghigna, E. Gjerløw, M. Gradziel, J. Grain, F. Grupp, A. Gruppuso, T. de Haan, N. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, D. Herman, D. Herranz, C. Hill, G. Hilton, Y. Hirota, E. Hivon, R. 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. Kuo, A. Kushino, J. Lanen, M. Lattanzi, A. Lee, C. Leloup, F. Levrier, E. Linder, T. Louis, G. Luzzi, T. Maciaszek, D. Maino, M. Maki, S. Mandelli, E. Martinez-Gonzalez, S. Masi, T. Matsumura, A. Mennella, M. Migliaccio, Y. Minami, K. Mitsuda, G. Morgante, Y. Murata, J. 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, S. Oguri, H. Ohsaki, I. Ohta, N. Okada, L. Pagano, A. Paiella, D. Paoletti, G. Patanchon, J. Peloton, F. Piacentini, G. Polenta, D. Poletti, G. Puglisi, D. Rambaud, C. Raum, S. Realini, M. Reinecke, M. Remazeilles, A. Ritacco, G. Roudil, J. Rubino-Martin, H. Sakurai, Y. Sakurai, M. Sandri, M. Sasaki, D. Scott, J. Seibert, Y. Sekimoto, B. Sherwin, K. Shinozaki, M. Shiraishi, P. Shirron, G. Signorelli, G. Smecher, R. Stompor, H. Sugai, S. Sugiyama, A. Suzuki, J. Suzuki, T. Svalheim, E. Switzer, R. Takaku, H. Takakura, S. Takakura, Y. Takase, Y. Takeda, A. Tartari, E. Taylor, Y. Terao, H. Thommesen, B. Thorne, T. Toda, M. Tomasi, M. Tominaga, N. Trappe, M. Tristram, M. Tsuji, J. Ullom, G. Vermeulen, P. Vielva, F. Villa, M. Vissers, N. Vittorio, I. Wehus, J. Weller, J. Wilms, B. Winter, E. Wollack, N. Yamasaki, T. Yoshida, J. Yumoto, M. Zannoni, A. Zonca

Proceedings Volume 11443, 114432G (2020) https://doi.org/10.1117/12.2562243

KEYWORDS: Telescopes, Space operations, Refractor telescopes, Sensors, Microwave radiation, Polarization, Cryogenics, Wave plates, Optical components, Lenses

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

On-site performance of GroundBIRD, a CMB polarization telescope for large angular scale observations

Shunsuke Honda, Jihoon Choi, Ricardo Tanausu Génova-Santos, Makoto Hattori, Masashi Hazumi, Takuji Ikemitsu, Hidesato Ishida, Hikaru Ishitsuka, Yonggil Jo, Kenichi Karatsu, Kenji Kiuchi, Junta Komine, Ryo Koyano, Hiroki Kutsuma, Kyungmin Lee, Satoru Mima, Makoto Minowa, Joonhyeok Moon, Makoto Nagai, Takeo Nagasaki, Masato Naruse, Shugo Oguri, Chiko Otani, Michael Peel, Rafael Rebolo-López, José Alberto Rubiño-Martín, Yutaro Sekimoto, Yoshinori Sueno, Junya Suzuki, Tohru Taino, Osamu Tajima, Nozomu Tomita, Yuta Tsuji, Tomohisa Uchida, Eunil Won, Mitsuhiro Yoshida

Proceedings Volume 11445, 114457Q (2020) https://doi.org/10.1117/12.2560918

KEYWORDS: Telescopes, Polarization, Sensors, Observatories, Microwave radiation, Field programmable gate arrays, Telecommunications, Optical instrument design, Atmospheric sensing, Detector arrays

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Breadboard model of the polarization modulator unit based on a continuously rotating half-wave plate for the low-frequency telescope of the LiteBIRD space mission

Yuki Sakurai, Tomotake Matsumura, Nobuhiko Katayama, Kunimoto Komatsu, Ryota Takaku, Shinya Sugiyama, Yoshiki Nomura, Takayuki Toda, Tommaso Ghigna, Teruhito Iida, Hajime Sugai, Hiroaki Imada, Masashi Hazumi, Hirokazu Ishino, Hiroyuki Ohsaki, Yutaka Terao, Hisashi Enokida, Yusuke Ishida, Yosuke Iwata, Doa Ahmad, Kuniaki Konishi, Haruyuki Sakurai, Junji Yumoto, Makoto Kuwata-Gonokami, Akito Kusaka, Charles Hill

Proceedings Volume 11453, 114534E (2020) https://doi.org/10.1117/12.2560289

KEYWORDS: Telescopes, Polarization, Modulators, Space operations, Space telescopes, Satellites, Signal detection, Sensors, Modulation, Calibration

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Detector and readout characterization for POLARBEAR-2b

J. Ito, L. Lowry, T. Elleflot, K. Crowley, L. Howe, P. Siritanasak, T. Adkins, K. Arnold, C. Baccigalupi, D. Barron, B. Bixler, Y. Chinone, J. Groh, M. Hazumi, C. Hill, O. Jeong, B. Keating, A. Kusaka, A. Lee, K. Mitchell, M. Navaroli, A. T. Pham, C. Raum, C. Reichardt, T. Sasse, J. Seibert, A. Suzuki, S. Takakura, G. Teply, C. Tsai, B. Westbrook

Proceedings Volume 11453, 1145320 (2020) https://doi.org/10.1117/12.2562766

KEYWORDS: Sensors, Bolometers, Multiplexing, Resonators, Telescopes, Polarization, Microwave radiation, Receivers, Silicon, Lenses

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Proceedings Article | 13 December 2020 Paper

Paper

Data acquisition and management system for the CMB polarization experiment: Simons Array

Haruki Nishino, Darcy Barron, Amy Bender, Yuji Chinone, Kevin Crowley, Tucker Elleflot, John Groh, Masaya Hasegawa, Masashi Hazumi, Charles Hill, Haruaki Hirose, Logan Howe, Daisuke Kaneko, Shuhei Kikuchi, Theodore Kisner, Akito Kusaka, Joshua Montgomery, Alexandra Rahlin, Praween Siritanasak, Graeme Smecher, Satoru Takakura, Sayuri Takatori, Daiki Tanabe, Benjamin Westbrook, Nathan Whitehorn, Alex Zahn, Yuyang Zhou

Proceedings Volume 11453, 1145329 (2020) https://doi.org/10.1117/12.2560616

KEYWORDS: Data acquisition, Receivers, Polarization, Data storage, Bolometers, Distributed computing, Microwave radiation, Sensors, Observatories, Environmental monitoring

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Proceedings Article | 9 August 2018 Presentation + Paper

Presentation + Paper

Concept design of the LiteBIRD satellite for CMB B-mode polarization

Y. Sekimoto, P. Ade, K. Arnold, J. Aumont, J. Austermann, C. Baccigalupi, A. Banday, R. Banerji, S. Basak, S. Beckman, M. Bersanelli, J. Borrill, F. Boulanger, M. Brown, M. Bucher, E. Calabrese, A. Challinor, Y. Chinone, F. Columbro, A. Cukierman, D. Curtis, P. de Bernardis, M. de Petris, M. Dobbs, T. Dotani, L. Duband, A. Ducout, K. Ebisawa, T. Elleflot, H. Eriksen, J. Errard, R. Flauger, C. Franceschet, U. Fuskeland, K. Ganga, J.R. Gao, T. Ghigna, J. Grain, A. Gruppuso, N. Halverson, P. Hargrave, T. Hasebe, M. Hasegawa, M. Hattori, M. Hazumi, S. Henrot-Versille, C. Hill, Y. Hirota, E. Hivon, D. T. Hoang, J. Hubmayr, K. Ichiki, H. Imada, H. Ishino, G. Jaehnig, H. Kanai, S. Kashima, Y. Kataoka, N. Katayama, T. Kawasaki, R. Keskitalo, A. Kibayashi, T. Kikuchi, K. Kimura, T. Kisner, Y. Kobayashi, N. Kogiso, K. Kohri, E. Komatsu, K. Komatsu, K. Konishi, N. Krachmalnicoff, C. L. Kuo, N. Kurinsky, A. Kushino, L. Lamagna, A. Lee, E. Linder, B. Maffei, M. Maki, A. Mangilli, E. Martinez-Gonzalez, S. Masi, T. Matsumura, A. Mennella, Y. Minami, K. Mistuda, D. Molinari, L. Montier, G. Morgante, B. Mot, Y. Murata, A. Murphy, M. Nagai, R. Nagata, S. Nakamura, T. Namikawa, P. Natoli, T. Nishibori, H. Nishino, F. Noviello, C. O'Sullivan, H. Ochi, H. Ogawa, H. Ohsaki, I. Ohta, N. Okada, G. Patanchon, F. Piacentini, G. Pisano, G. Polenta, D. Poletti, G. Puglisi, C. Raum, S. Realini, M. Remazeilles, H. Sakurai, Y. Sakurai, G. Savini, B. Sherwin, K. Shinozaki, M. Shiraishi, G. Signorelli, G. Smecher, R. Stompor, H. Sugai, S. Sugiyama, A. Suzuki, J. Suzuki, R. Takaku, H. Takakura, S. Takakura, E. Taylor, Y. Terao, K. Thompson, B. Thorne, M. Tomasi, H. Tomida, N. Trappe, M. Tristram, M. Tsuji, M. Tsujimoto, S. Uozumi, S. Utsunomiya, N. Vittorio, N. Watanabe, I. Wehus, B. Westbrook, B. Winter, R. Yamamoto, N. Yamasaki, M. Yanagisawa, T. Yoshida, J. Yumoto, M. Zannoni, A. Zonca

Proceedings Volume 10698, 106981Y (2018) https://doi.org/10.1117/12.2313432

KEYWORDS: Telescopes, Polarization, Space telescopes, Fermium, Frequency modulation, Cryogenics, Physics, Antennas, Mirrors, Satellites

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Proceedings Article | 16 July 2018 Paper

Paper

The optical design and physical optics analysis of a cross-Dragonian telescope for LiteBIRD

Hiroaki Imada, Tadayasu Dotani, Takashi Hasebe, Masashi Hazumi, Junji Inatani, Hirokazu Ishino, Shingo Kashima, Nobuhiko Katayama, Kimihiro Kimura, Tomotake Matsumura, Ryo Nagata, Yutaro Sekimoto, Hajime Sugai, Aritoki Suzuki, Shin Utsunomiya

Proceedings Volume 10698, 106984K (2018) https://doi.org/10.1117/12.2312185

KEYWORDS: Space telescopes, Stray light, Optical design, Diffraction, Ray tracing

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Proceedings Article | 12 July 2018 Paper

Paper

Thermal design utilizing radiative cooling for the payload module of LiteBIRD

Takashi Hasebe, Shingo Kashima, Satoru Uozumi, Hirokazu Ishino, Shin Utsunomiya, Hirofumi Noda, Kazuhisa Mitsuda, Yutaro Sekimoto, Tadayasu Dotani, Tomotake Matsumura, Hajime Sugai, Masahiro Tsujimoto, Hiroaki Imada, Masashi Hazumi

Proceedings Volume 10698, 1069864 (2018) https://doi.org/10.1117/12.2313034

KEYWORDS: Space operations, Cryogenics, Radiative energy transfer, Space telescopes, Telescopes, Solar radiation, Cryocoolers, Satellites, Optical properties

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Proceedings Article | 10 July 2018 Presentation

Presentation

Development of cosmic ray mitigation techniques for the LiteBIRD space mission (Conference Presentation)

Shawn Beckman, Adrian Lee, Masashi Hazumi, Aritoki Suzuki, Yuto Minami, Noah Kurinsky, LiteBIRD Collaboration

Proceedings Volume 10708, 107081T (2018) https://doi.org/10.1117/12.2314288

KEYWORDS: Space operations, Sensors, Bolometers, Space telescopes, Telescopes, Phonons, Semiconducting wafers, Satellites, Polarization, Reflectors

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Proceedings Article | 10 July 2018 Presentation

Presentation

Performance evaluation of MKDs on a high-speed rotating system for CMB telescope: GroundBIRD (Conference Presentation)

Satoru Mima, Jihoon Choi, Ricardo Tanausú Génova-Santos, Makoto Hattori, Masashi Hazumi, Hikaru Ishitsuka, Fumiyasu Kanno, Kenichi Karatsu, Kenji Kiuchi, Junta Komine, Ryo Koyano, Hiroki Kutsuma, Kyungmin Lee, Makoto Minowa, Makoto Nagai, Takeo Nagasaki, Masato Naruse, Shugo Oguri, Chiko Otani, Rafael Rebolo, José Alberto Rubiño-Martín, Yutaro Sekimoto, Munehisa Semoto, Junya Suzuki, Tohru Taino, Osamu Tajima, Nozomu Tomita, Tomohisa Uchida, Eunil Won, Mitsuhiro Yoshida

Proceedings Volume 10708, 107081I (2018) https://doi.org/10.1117/12.2314321

KEYWORDS: Telescopes, Magnetism, Modulation, Microwave radiation, Polarization, Sensors, Optical scanning systems, Inductance, Atmospheric optics, Observatories

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The cosmic microwave background (CMB) radiation is an afterglow of the Big Bang. It contains the crucial keys to understand the beginning of the universe. In particular, the odd-parity patterns of CMB polarization, B-modes, at more than degree-scale, are the best probe to detect primordial gravitational waves at the cosmic inflation. The GroundBIRD experiment aims to detect this large angular scale patterns from the ground. The experiment employs novel techniques; a high-speed rotational scanning system (20 revolution-per-minutes) with cold optics below 4K, and microwave kinetic inductance detectors (MKIDs) as the focal plane detectors. The fast scanning modulation is a crucial characteristic in our observation strategy to mitigate effects of the atmospheric fluctuation. The telescope rotates and scans the sky along the azimuth at the elevation angle of 60 degrees at Teide observatory in the Canary Islands. It allows us to measure CMB polarization patterns at a wide multipole range, 6 < \ell < 300, i.e. aiming to catch the reionization bump. We have developed a telescope mount with 3-axis rotation mechanism (azimuth, elevation, and boresight). We are evaluating the vibration at the focal plane position with rotating the telescope mount. The focal plane consists of seven hexagonal corrugated horn coupled MKIDs array: six hexagon units are for 145 GHz band (55 pixels/unit), and one unit is for 220 GHz band (112 pixels). Each pixel consists of a corrugated horn, a planner OMT, millimeter wave circuits for transmission of dual-polarization signals with the suppression of crosstalk modes, and two MKIDs for each polarization. Magnetic shields are also mounted so as to suppress the external magnetic fields. Trapped magnetic fields inside of the superconducting materials decrease the performance of the MKID. The geomagnetism is the static and large magnetic fields. The telescope motion makes modulation of the geomagnetism as well as the modulation of CMB signals. Therefore, we need careful evaluation associating with the telescope rotation. By using a small evaluation system with modulated magnetic fields, we understand impacts the magnetic shield as well as responses of the MKID for the modulated magnetic field. We design the shield based on them. In this presentation, we will report an evaluation of detector responses on the high-speed rotating system along the azimuth. We will also show demonstrations of our own readout electronics which is well matching with the rapid scan modulation strategy.

Proceedings Article | 10 July 2018 Presentation

Presentation

POLARBEAR-2: a new CMB polarization receiver system for the Simons array (Conference Presentation)

Masaya Hasegawa, The POLARBEAR COLLABORATION, Peter Ade, Mario Aguilar, Yoshiki Akiba, Aamir Ali, Kam Arnold, Peter Ashton, Carlo Baccigalupi, Darcy Barron, Dominic Beck, Shawn Beckman, Amy Bender, Federico Bianchini, David Boettger, Julian Borrill, Julien Carron, Scott Chapman, Yuji Chinone, Gabriele Coppi, Kevin Crowley, Ari Cukierman, Matt Dobbs, Rolando Dunner, Tucker Elleflot, Josquin Errard, Giulio Fabbian, Stephen Feeney, Chang Feng, George Fuller, Nicholas Galitzki, Andrew Gilbert, Neil Goeckner-Wald, John Groh, Tijmen Haan, Nils Halverson, Takaho Hamada, Masashi Hazumi, Charles Hill, William Holzapfel, Logan Howe, Yuki Inoue, Jennifer Ito, Greg Jaehnig, Andrew Jaffe, Oliver Jeong, Maude Jeune, Daisuke Kaneko, Nobuhiko Katayama, Brian Keating, Reijo Keskitalo, Theodore Kisner, Nicoletta Krachmalnicoff, Akito Kusaka, Adrian Lee, David Leon, Eric Linder, Lindsay Lowry, Alex Madurowicz, Suet Mak, Frederick Matsuda, Tomotake Matsumura, Andrew May, Nathan Miller, Yuto Minami, Joshua Montgomery, Martin Navaroli, Haruki Nishino, Julien Peloton, Anh Pham, Lucio Piccirillo, Richard Plambeck, Davide Poletti, Giuseppe Puglisi, Christopher Raum, Gabriel Rebeiz, Christian Reichardt, Paul Richards, Hayley Roberts, Colin Ross, Kaja Rotermund Rotermund, Yuuko Segawa, Blake Sherwin, Maximiliano Silva-Feaver, Praween Siritanasak, Leo Steinmetz, Radek Stompor, Aritoki Suzuki, Osamu Tajima, Satoru Takakura, Sayuri Takatori, Daiki Tanabe, Raymond Tat, Grant Teply, Takayuki Tomaru, Calvin Tsai Tsai, Clara Verges, Ben Westbrook, Nathan Whitehorn, Alex Zahn, Junichi Suzuki, Takahiro Okamura

Proceedings Volume 10708, 1070802 (2018) https://doi.org/10.1117/12.2311576

KEYWORDS: Receivers, Polarization, Bolometers, Sensors, Multiplexing, Telescopes, Microwave radiation, Helium, Staring arrays, Superconductors

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POLARBEAR-2 is a new receiver system, which will be deployed on the Simons Array telescope platform, for the measurement of Cosmic Microwave Background (CMB) polarization. The science goals with POLARBEAR-2 are to characterize the B-mode signal both at degree and sub-degree angular-scales. The degree-scale polarization data can be used for quantitative studies on inflation, such as the reconstruction of the energy scale of inflation. The sub-degree polarization data is an excellent tracer of large-scale structure in the universe, and will lead to precise constraints on the sum of the neutrino masses. In order to achieve these goals, POLARBEAR-2 employs 7588 polarization-sensitive antenna-coupled transition-edge sensor (TES) bolometers on the focal plane cooled to 0.27K with a three-stage Helium sorption refrigerator, which is ~6 times larger array over the current receiver system. The large TES bolometer array is read-out by an upgraded digital frequency-domain multiplexing system capable of multiplexing 40 bolometers through a single superconducting quantum interference device (SQUID). The first POLARBEAR-2 receiver, POLARBEAR-2A is constructed and the end-to-end testing to evaluate the integrated performance of detector, readout, and optics system is being conducted in the laboratory with various types of test equipments. The POLARBEAR-2A is scheduled to be deployed in 2018 at the Atacama desert in Chile. To further increase measurement sensitivity, two more POLARBEAR-2 type receivers will be deployed soon after the deployment (Simons Array project). The Simons Array will cover four frequency bands at 95GHz, 150GHz, 220GH and 270GHz for better control of the foreground signal. The projected constraints on a tensor-to-scalar ratio (amplitude of inflationary B-mode signal) is σ(r=0.1) = $6.0 \times 10^{-3}$ after foreground removal ($4.0 \times 10^{-3}$ (stat.)), and the sensitivity to the sum of the neutrino masses when combined with DESI spectroscopic galaxy survey data is 40 meV at 1-sigma after foreground removal (19 meV(stat.)). We will present an overview of the design, assembly and status of the laboratory testing of the POLARBEAR-2A receiver system as well as the Simons Array project overview.

Proceedings Article | 10 July 2018 Presentation

Presentation

Electrical characterization and tuning of the integrated POLARBEAR-2a focal plane and readout (Conference Presentation)

Darcy Barron, Kam Arnold, Tucker Elleflot, John Groh, Daisuke Kaneko, Nobuhiko Katayama, Adrian Lee, Lindsay Lowry, Haruki Nishino, Aritoki Suzuki, Sayuri Takatori, P. Ade, Y. Akiba, A. Ali, M. Aguilar, A. Anderson, P. Ashton, J. Avva, D. Beck, C. Baccigalupi, S. Beckman, A. Bender, F. Bianchini, D. Boettger, J. Borrill, J. Carron, S. Chapman, Y. Chinone, G. Coppi, K. Crowley, A. Cukierman, T. de Haan, M. Dobbs, R. Dunner, J. Errard, G. Fabbian, S. Feeney, C. Feng, G. Fuller, N. Galitzki, A. Gilbert, N. Goeckner-Wald, T. Hamada, N. Halverson, M. Hasegawa, M. Hazumi, C. Hill, W. Holzapfel, L. Howe, Y. Inoue, J. Ito, G. Jaehnig, O. Jeong, B. Keating, R. Keskitalo, T. Kisner, N. Krachmalnicoff, A. Kusaka, M. Le Jeune, D. Leon, E. Linder, A. Lowitz, A. Madurowicz, D. Mak, F. Matsuda, T. Matsumura, A. May, N. Miller, Y. Minami, J. Montgomery, T. Natoli, M. Navroli, J. Peloton, A. Pham, L. Piccirillo, D. Plambeck, D. Poletti, G. Puglisi, C. Raum, G. Rebeiz, C. Reichardt, P. Richards, H. Roberts, C. Ross, K. Rotermund, Max Silva Feaver, Y. Segawa, B. Sherwin, P. Siritanasak, L. Steinmetz, R. Stompor, O. Tajima, S. Takakura, D. Tanabe, R. Tat, G. Teply, A. Tikhomirov, T. Tomaru, C. Tsai, C. Verges, B. Westbrook, N. Whitehorn, A. Zahn

Proceedings Volume 10708, 1070808 (2018) https://doi.org/10.1117/12.2311502

KEYWORDS: Bolometers, Polarization, Sensors, Receivers, Microwave radiation, Telescopes, Frequency division multiplexing, Aluminum, Capacitors, Circuit switching

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POLARBEAR is a cosmic microwave background (CMB) polarization experiment located in the Atacama desert in Chile. The science goals of the POLARBEAR project are to do a deep search for CMB B-mode polarization created by inflationary gravitational waves, as well as characterize the CMB B-mode signal from gravitational lensing. POLARBEAR-1 started observations in 2012, and the POLARBEAR team has published a series of results from its first two seasons of observations, including the first measurement of a non-zero B-mode polarization angular power spectrum, measured at sub-degree scales where the dominant signal is gravitational lensing of the CMB. The Simons Array expands POLARBEAR to include an additional two telescopes with next-generation POLARBEAR-2 multi-chroic receivers, observing at 95, 150, 220, and 270 GHz. The POLARBEAR-2A focal plane has 7,588 transition-edge sensor bolometers, read out with frequency-division multiplexing, with 40 frequency channels within the readout bandwidth of 1.5 to 4.5 MHz. The frequency channels are defined by a low-loss lithographed aluminum spiral inductor and interdigitated capacitor in series with each bolometer, creating a resonant frequency for each channel's unique voltage bias and current readout. Characterization of the readout includes measuring resonant peak locations and heights and fitting to a circuit model both above and below the bolometer superconducting transition temperature. This information is used determine the optimal detector bias frequencies and characterize stray impedances which may affect bolometer operation and stability. The detector electrical characterization includes measurements of the transition properties by sweeping in temperature and in voltage bias, measurements of the bolometer saturation power, as well as measuring and removing any biases introduced by the readout circuit. We present results from the characterization, tuning, and operation of the fully integrated focal plane and readout for the first POLARBEAR-2 receiver, POLARBEAR-2A, during its pre-deployment integration run.

Proceedings Article | 9 July 2018 Paper

Paper

Cross-polarization systematics due to Mizuguchi-Dragone condition breaking by a continuously rotating half-wave plate at prime focus in the Huan Tran telescope

Frederick Matsuda, Satoru Takakura, Kam Arnold, David Boettger, Yuji Chinone, Masashi Hazumi, Brian Keating, Akito Kusaka, Adrian Lee

Proceedings Volume 10708, 1070849 (2018) https://doi.org/10.1117/12.2313177

KEYWORDS: Polarization, Reflectors, Optical simulations, Telescopes, Beam shaping, Wave plates, Angle modulation, Mueller matrices, Passive millimeter wave sensors, Polarization control

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Polarization modulation using a continuously rotating half-wave plate (HWP) is a promising technique to reduce both low-frequency noise and instrumental systematics for Cosmic Microwave Background (CMB) polarization measurements targeting in ationary B-modes. Although a HWP is best placed sky-side of the telescope optics in order to minimize systematics, >0.5 meter aperture class telescopes must put the HWP elsewhere in the optics chain due to current fabrication limitations in the available HWP size. Polarbear is a ground-based CMB experiment installed on the 2.5m aperture off-axis Gregorian-Dragone type Huan Tran Telescope (HTT) designed to satisfy the Mizuguchi-Dragone condition. Polarbear-2 is a receiver that will be installed on a second HTT in 2018. Polarbear-2 is designed to have a larger field-of-view (FOV) and vastly increased sensitivity to the polarized CMB compared to Polarbear. From the third season of observations, Polarbear has installed a continuously rotating HWP at the spatially localized focus plane between the HTT primary and secondary re ectors which is an optimal location for minimizing the HWP diameter. The HWP's polarization angle re ection with respect to its birefringent axis will theoretically break the Mizuguchi-Dragone condition when placed between the two reflectors and increase cross-polarization systematics. In this study, we analyze how the Mizuguchi-Dragone condition is violated due to a HWP at this location. We then estimate the crosspolarization systematics of the HTT using physical optics simulations. We model an ideal HWP at various angles to estimate the effects of demodulation. We evaluate the increased cross-polarization as the Stokes Q-U mixing term using the Mueller Matrix formalism. It is calculated that this term creates a varying dipole beam pattern whose amplitude ranges from 1% at the center to 10% at the edge FOV pixels for Polarbear and potentially up to 20% for Polarbear-2. We also estimate the leakage of the E-mode into the B-mode angular power spectrum measurements due to this cross-polarization. We show that the cross-polarization systematic error leakage is sufficiently lower than the Polarbear-2 statistical uncertainty thanks to mitigations such as focal plane averaging and sky rotation. Currently for Polarbear-2 we are planning to place the HWP at Gregorian focus, but keeping the HWP at prime focus as a back-up solution in case that there are unforeseen telescope spatial and HWP material size constraints. Through this study we find that even though a HWP between the two reflectors will violate the Mizuguchi-Dragone condition, this HWP at prime focus will still have sufficiently low cross-polarization for Polarbear-2. The prime focus HWP is a potential configuration that can be applied to similar off-axis Gregorian-Dragone telescopes in order to minimize the required HWP diameter.

Proceedings Article | 9 July 2018 Paper

Paper

Prototype design and evaluation of the nine-layer achromatic half-wave plate for the LiteBIRD low frequency telescope

Kunimoto Komatsu, Tomotake Matsumura, Masashi Hazumi, Hiroaki Imada, Hirokazu Ishino, Nobuhiko Katayama, Yuki Sakurai, Hajime Sugai, Ryota Takaku

Proceedings Volume 10708, 1070847 (2018) https://doi.org/10.1117/12.2312431

KEYWORDS: Modulation, Sapphire, Polarization, Refractive index, Telescopes, Transmittance, Space telescopes

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

Design and development of a polarization modulator unit based on a continuous rotating half-wave plate for LiteBIRD

Yuki Sakurai, Tomotake Matsumura, Nobuhiko Katayama, Hiroaki Imada, Kunimoto Komatsu, Hiroaki Kanai, Ryota Takaku, Shinya Sugiyama, Tommaso Ghigna, Teruhito Iida, Hajime Sugai, Hiroyuki Ohsaki, Yutaka Terao, Toshiki Shimomura, Kuniaki Konishi, Haruyuki Sakurai, Junji Yumoyo, Muneyoshi Maki, Junichi Suzuki, Hirokazu Ishino, Shogo Nakamura, Akito Kusaka, Charles Hill, Masashi Hazumi, Hirokazu Kataza, Shin Utsunomiya, Ryo Yamamoto, Makoto Tashiro, Yukikatsu Terada

Proceedings Volume 10708, 107080E (2018) https://doi.org/10.1117/12.2312391

KEYWORDS: Polarization, Sapphire, Cryogenics, Modulation, Prototyping, Magnetism, Superconductors, Sensors, Transmittance, Satellites

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Proceedings Article | 6 July 2018 Paper

Paper

Current design of the electrical architecture for the payload module of LiteBIRD

M. Tsujimoto, H. Nishino, M. Hazumi, Y. Sekimoto, T. Dotani, H. Ishino, A. Kibayashi, Y. Sakurai, T. Matsumura, M. Dobbs, J.-F. Cliche, G. Smecher, A. Suzuki, A. Lee, K. Arnold, L. Montier, B. Mot, G. Signorelli, P. de Bernardis

Proceedings Volume 10698, 1069847 (2018) https://doi.org/10.1117/12.2311579

KEYWORDS: Electronics, Clocks, Space telescopes, Polarization, Space operations, Telescopes, Data communications, Semiconducting wafers, Physics, Cryogenics

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Proceedings Article | 5 September 2017 Paper

Paper

Trade-off studies on LiteBIRD reflectors

Hajime Sugai, Tomotake Matsumura, Junichi Suzuki, Muneyoshi Maki, Mitsugu Hosumi, Masashi Hazumi, Nobuhiko Katayama, Shin Utsunomiya, Shingo Kashima, Yuki Sakurai, Hiroaki Imada, Hirokazu Ishino, Takenori Fujii

Proceedings Volume 10372, 103720I (2017) https://doi.org/10.1117/12.2273765

KEYWORDS: Reflectors, Temperature metrology, Aluminum, Telescopes, Satellites, Polarization, Synchrotrons, Aerospace engineering, Cryogenics, Microwave radiation

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Proceedings Article | 8 August 2016 Paper

Paper

POLARBEAR-2: an instrument for CMB polarization measurements

Y. Inoue, P. Ade, Y. Akiba, C. Aleman, K. Arnold, C. Baccigalupi, B. Barch, D. Barron, A. Bender, D. Boettger, J. Borrill, S. Chapman, Y. Chinone, A. Cukierman, T. de Haan, M. Dobbs, A. Ducout, R. Dünner, T. Elleflot, J. Errard, G. Fabbian, S. Feeney, C. Feng, G. Fuller, A. Gilbert, N. Goeckner-Wald, J. Groh, G. Hall, N. Halverson, T. Hamada, M. Hasegawa, K. Hattori, M. Hazumi, C. Hill, W. Holzapfel, Y. Hori, L. Howe, F. Irie, G. Jaehnig, A. Jaffe, O. Jeong, N. Katayama, J. Kaufman, K. Kazemzadeh, B. Keating, Z. Kermish, R. Keskitalo, T. Kisner, A. Kusaka, M. Le Jeune, A. Lee, D. Leon, E. Linder, L. Lowry, F. Matsuda, T. Matsumura, N. Miller, K. Mizukami, J. Montgomery, M. Navaroli, H. Nishino, H. Paar, J. Peloton, D. Poletti, G. Puglisi, C. Raum, G. Rebeiz, C. Reichardt, P. Richards, C. Ross, K. Rotermund, Y. Segawa, B. Sherwin, I. Shirley, P. Siritanasak, N. Stebor, R. Stompor, J. Suzuki, A. Suzuki, O. Tajima, S. Takada, S. Takatori, G. Teply, A. Tikhomirov, T. Tomaru, N. Whitehorn, A. Zahn, O. Zahn

Proceedings Volume 9914, 99141I (2016) https://doi.org/10.1117/12.2231961

KEYWORDS: Signal detection, Sensors, Polarization, Bolometers, Receivers, Lenses, Optical filters, Physics, Optical filtering, Mirrors

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Proceedings Article | 29 July 2016 Paper

Paper

LiteBIRD: lite satellite for the study of B-mode polarization and inflation from cosmic microwave background radiation detection

H. Ishino, Y. Akiba, K. Arnold, D. Barron, J. Borrill, R. Chendra, Y. Chinone, S. Cho, A. Cukierman, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, T. Elleflot, J. Errard, T. Fujino, H. Fuke, T. Funaki, N. Goeckner-Wald, N. Halverson, P. Harvey, T. Hasebe, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, N. Hidehira, C. Hill, G. Hilton, W. Holzapfel, Y. Hori, J. Hubmayr, K. Ichiki, H. Imada, J. Inatani, M. Inoue, Y. Inoue, F. Irie, K. Irwin, H. Ishitsuka, O. Jeong, H. Kanai, K. Karatsu, S. Kashima, N. Katayama, I. Kawano, T. Kawasaki, B. Keating, S. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, N. Kimura, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C.-L. Kuo, S. Kuromiya, A. Kusaka, A. Lee, D. Li, E. Linder, M. Maki, H. Matsuhara, T. Matsumura, S. Matsuoka, S. Matsuura, S. Mima, Y. Minami, K. Mitsuda, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, T. Nishibori, K. Nishijo, H. Nishino, A. Noda, T. Noguchi, H. Ogawa, W. Ogburn, S. Oguri, I. Ohta, N. Okada, A. Okamoto, T. Okamura, C. Otani, G. Pisano, G. Rebeiz, P. Richards, S. Sakai, Y. Sakurai, Y. Sato, N. Sato, Y. Segawa, S. Sekiguchi, Y. Sekimoto, M. Sekine, U. Seljak, B. Sherwin, T. Shimizu, K. Shinozaki, S. Shu, R. Stompor, H. Sugai, H. Sugita, J. Suzuki, T. Suzuki, A. Suzuki, O. Tajima, S. Takada, S. Takakura, K. Takano, S. Takatori, Y. Takei, D. Tanabe, T. Tomaru, N. Tomita, P. Turin, S. Uozumi, S. Utsunomiya, Y. Uzawa, T. Wada, H. Watanabe, B. Westbrook, N. Whitehorn, Y. Yamada, R. Yamamoto, N. Yamasaki, T. Yamashita, T. Yoshida, M. Yoshida, K. Yotsumoto

Proceedings Volume 9904, 99040X (2016) https://doi.org/10.1117/12.2231995

KEYWORDS: Telescopes, Satellites, Microwave radiation, Polarization, Sensors, Space telescopes, Space operations, Detector arrays, Mirrors, Bolometers

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Proceedings Article | 27 July 2016 Paper

Paper

GroundBIRD: observations of CMB polarization with fast scan modulation and MKIDs

Shugo Oguri, Jihoon Choi, Thushara Damayanthi, Makoto Hattori, Masashi Hazumi, Hikaru Ishitsuka, Kenji Kiuchi, Ryo Koyano, Hiroki Kutsuma, Kyungmin Lee, Satoru Mima, Makoto Minowa, Makoto Nagai, Taketo Nagasaki, Chiko Otani, Yutaro Sekimoto, Munehisa Semoto, Jun’ya Suzuki, Tohru Taino, Osamu Tajima, Nozomu Tomita, Eunil Won, Tomohisa Uchida, Mitsuhiro Yoshida

Proceedings Volume 9906, 99063L (2016) https://doi.org/10.1117/12.2231672

KEYWORDS: Microwave radiation, Polarization, Mirrors, Inductance, Sensors, Modulation, Telescopes, Prototyping, Calibration, Semiconducting wafers

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Proceedings Article | 20 July 2016 Paper

Paper

The Simons Array CMB polarization experiment

N. Stebor, P. Ade, Y. Akiba, C. Aleman, K. Arnold, C. Baccigalupi, B. Barch, D. Barron, S. Beckman, A. Bender, D. Boettger, J. Borrill, S. Chapman, Y. Chinone, A. Cukierman, T. de Haan, M. Dobbs, A. Ducout, R. Dunner, T. Elleflot, J. Errard, G. Fabbian, S. Feeney, C. Feng, T. Fujino, G. Fuller, A. Gilbert, N. Goeckner-Wald, J. Groh, G. Hall, N. Halverson, T. Hamada, M. Hasegawa, K. Hattori, M. Hazumi, C. Hill, W. Holzapfel, Y. Hori, L. Howe, Y. Inoue, F. Irie, G. Jaehnig, A. Jaffe, O. Jeong, N. Katayama, J. Kaufman, K. Kazemzadeh, B. Keating, Z. Kermish, R. Keskitalo, T. Kisner, A. Kusaka, M. Le Jeune, A. Lee, D. Leon, E. Linder, L. Lowry, F. Matsuda, T. Matsumura, N. Miller, J. Montgomery, M. Navaroli, H. Nishino, H. Paar, J. Peloton, D. Poletti, G. Puglisi, C. Raum, G. Rebeiz, C. Reichardt, P. Richards, C. Ross, K. Rotermund, Y. Segawa, B. Sherwin, I. Shirley, P. Siritanasak, L. Steinmetz, R. Stompor, A. Suzuki, O. Tajima, S. Takada, S. Takatori, G. Teply, A. Tikhomirov, T. Tomaru, B. Westbrook, N. Whitehorn, A. Zahn, O. Zahn

Proceedings Volume 9914, 99141H (2016) https://doi.org/10.1117/12.2233103

KEYWORDS: Polarization, Polarization, Receivers, Bolometers, Cryogenics, Telescopes, Sensors, Physics, Detector arrays, Staring arrays, Astronomy

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Proceedings Article | 19 July 2016 Paper

Paper

Design and development of an ambient-temperature continuously-rotating achromatic half-wave plate for CMB polarization modulation on the POLARBEAR-2 experiment

Charles Hill, Shawn Beckman, Yuji Chinone, Neil Goeckner-Wald, Masashi Hazumi, Brian Keating, Akito Kusaka, Adrian Lee, Frederick Matsuda, Richard Plambeck, Aritoki Suzuki, Satoru Takakura

Proceedings Volume 9914, 99142U (2016) https://doi.org/10.1117/12.2232280

KEYWORDS: Polarization, Modulation, Sapphire, Sensors, Modulation, Receivers, Dielectric polarization, Phase shift keying, Mirrors, Autoregressive models, Signal detection

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Proceedings Article | 19 August 2014 Paper

Paper

Thermal and optical characterization for POLARBEAR-2 optical system

Y. Inoue, N. Stebor, P. A. Ade, Y. Akiba, K. Arnold, A. Anthony, M. Atlas, D. Barron, A. Bender, D. Boettger, J. Borrilll, S. Chapman, Y. Chinone, A. Cukierman, M. Dobbs, T. Elleflot, J. Errard, G. Fabbian, C. Feng, A. Gilbert, N. Halverson, M. Hasegawa, K. Hattori, M. Hazumi, W. Holzapfel, Y. Hori, G. Jaehnig, A. Jaffe, N. Katayama, B. Keating, Z. Kermish, Reijo Keskitalo, T. Kisner, M. Le Jeune, A. Lee, E. Leitch, E. Linder, F. Matsuda, T. Matsumura, X. Meng, H. Morii, M. Myers, M. Navaroli, H. Nishino, T. Okamura, H. Paar, J. Peloton, D. Poletti, G. Rebeiz, C. Reichardt, P. Richards, C. Ross, D. Schenck, B. Sherwin, P. Siritanasak, G. Smecher, M. Sholl, B. Steinbach, R. Stompor, A. Suzuki, J. Suzuki, S. Takada, S. Takakura, T. Tomaru, B. Wilson, A. Yadav, H. Yamaguchi, O. Zahn

Proceedings Volume 9153, 91533A (2014) https://doi.org/10.1117/12.2055572

KEYWORDS: Temperature metrology, Optical filters, Sensors, Receivers, Optical filtering, Lenses, Optical testing, Thermography, Physics, Bolometers

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Proceedings Article | 19 August 2014 Paper

Paper

Optimization of cold resonant filters for frequency domain multiplexed readout of POLARBEAR-2

Kaori Hattori, Yoshiki Akiba, Kam Arnold, Darcy Barron, Amy Bender, Matthew Adam Dobbs, Tijmen de Haan, Nicholas Harrington, Masaya Hasegawa, Masashi Hazumi, William Laird Holzapfel, Yasuto Hori, Brian Keating, Adrian Lee, Joshua Montgomery, Hideki Morii, Michael Myers, Kaja Rotermund, Ian Shirley, Graeme Smecher, Nathan Stebor, Aritoki Suzuki, Takayuki Tomaru

Proceedings Volume 9153, 91531B (2014) https://doi.org/10.1117/12.2057045

KEYWORDS: Bolometers, Inductance, Multiplexing, Capacitors, Resistance, Polarization, Electronics, Superconductors, Calibration, Microwave radiation

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Proceedings Article | 19 August 2014 Paper

Paper

The Simons Array: expanding POLARBEAR to three multi-chroic telescopes

K. Arnold, N. Stebor, P. A. Ade, Y. Akiba, A. Anthony, M. Atlas, D. Barron, A. Bender, D. Boettger, J. Borrill, S. Chapman, Y. Chinone, A. Cukierman, M. Dobbs, T. Elleflot, J. Errard, G. Fabbian, C. Feng, A. Gilbert, N. Goeckner-Wald, N. Halverson, M. Hasegawa, K. Hattori, M. Hazumi, W. Holzapfel, Y. Hori, Y. Inoue, G. Jaehnig, A. Jaffe, N. Katayama, B. Keating, Z. Kermish, R. Keskitalo, T. Kisner, M. Le Jeune, A. Lee, E. Leitch, E. Linder, F. Matsuda, T. Matsumura, X. Meng, N. Miller, H. Morii, M. Myers, M. Navaroli, H. Nishino, T. Okamura, H. Paar, J. Peloton, D. Poletti, C. Raum, G. Rebeiz, C. Reichardt, P. Richards, C. Ross, K. Rotermund, D. Schenck, B. Sherwin, I. Shirley, M. Sholl, P. Siritanasak, G. Smecher, B. Steinbach, R. Stompor, A. Suzuki, J. Suzuki, S. Takada, S. Takakura, T. Tomaru, B. Wilson, A. Yadav, O. Zahn

Proceedings Volume 9153, 91531F (2014) https://doi.org/10.1117/12.2057332

KEYWORDS: Telescopes, Physics, Polarization, Space telescopes, Receivers, Sensors, Baryon acoustic oscillations, Aerospace engineering, Astronomy, Spatial resolution

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Proceedings Article | 2 August 2014 Paper

Paper

LiteBIRD: mission overview and design tradeoffs

T. Matsumura, Y. Akiba, J. Borrill, Y. Chinone, M Dobbs, H. Fuke, M. Hasegawa, K. Hattori, M. Hattori, M. Hazumi, W. Holzapfel, Y. Hori, J. Inatani, M. Inoue, Y. Inoue, K. Ishidoshiro, H. Ishino, H. Ishitsuka, K. Karatsu, S. Kashima, N. Katayama, I. Kawano, A. Kibayashi, Y. Kibe, K. Kimura, N. Kimura, E. Komatsu, M. Kozu, K. Koga, A. Lee, H. Matsuhara, S. Mima, K. Mitsuda, K. Mizukami, H. Morii, T. Morishima, M. Nagai, R. Nagata, S. Nakamura, M. Naruse, T. Namikawa, K. Natsume, T. Nishibori, K. Nishijo, H. Nishino, A. Noda, T. Noguchi, H. Ogawa, S. Oguri, I. Ohta, N. Okada, C. Otani, P. Richards, S. Sakai, N. Sato, Y. Sato, Y. Segawa, Y. Sekimoto, K. Shinozaki, H. Sugita, A. Suzuki, T. Suzuki, O. Tajima, S. Takada, S. Takakura, Y. Takei, T. Tomaru, Y. Uzawa, T. Wada, H. Watanabe, Y. Yamada, H. Yamaguchi, N. Yamasaki, M. Yoshida, T. Yoshida, K. Yotsumoto

Proceedings Volume 9143, 91431F (2014) https://doi.org/10.1117/12.2055794

KEYWORDS: Polarization, Satellites, Sensors, Telescopes, Mirrors, Microwave radiation, Antennas, Sun, Calibration, Physics

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Proceedings Article | 23 July 2014 Paper

Paper

Development and characterization of the readout system for POLARBEAR-2

D. Barron, P. A. Ade, Y. Akiba, C. Aleman, K. Arnold, M. Atlas, A. Bender, J. Borrill, S. Chapman, Y. Chinone, A. Cukierman, M. Dobbs, T. Elleflot, J. Errard, G. Fabbian, G. Feng, A. Gilbert, N. Halverson, M. Hasegawa, K. Hattori, M. Hazumi, W. Holzapfel, Y. Hori, Y. Inoue, G. Jaehnig, N. Katayama, B. Keating, Z. Kermish, R. Keskitalo, T. Kisner, M. Le Jeune, A. Lee, F. Matsuda, T. Matsumura, H. Morii, M. Myers, M. Navroli, H. Nishino, T. Okamura, J. Peloton, G. Rebeiz, C. Reichardt, P. Richards, C. Ross, M. Sholl, P. Siritanasak, G. Smecher, N. Stebor, B. Steinbach, R. Stompor, A. Suzuki, J. Suzuki, S. Takada, T. Takakura, T. Tomaru, B. Wilson, H. Yamaguchi, O. Zahn

Proceedings Volume 9153, 915335 (2014) https://doi.org/10.1117/12.2055611

KEYWORDS: Bolometers, Sensors, Receivers, Multiplexing, Capacitors, Physics, Telescopes, Polarization, Inductance, Picosecond phenomena

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Proceedings Article | 5 October 2012 Paper

Paper

GroundBIRD: an experiment for CMB polarization measurements at a large angular scale from the ground

Osamu Tajima, Jhoon Choi, Masashi Hazumi, Hikaru Ishitsuka, Masanori Kawai, Mitsuhiro Yoshida

Proceedings Volume 8452, 84521M (2012) https://doi.org/10.1117/12.925816

KEYWORDS: Polarization, Calibration, Sensors, Signal detection, Helium, Telescopes, Satellites, Antennas, Photons, Microwave radiation

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Proceedings Article | 5 October 2012 Paper

Paper

New demodulation scheme for coherent polarimeters in CMB experiments

K. Ishidoshiro, Y. Chinone, M. Hasegawa, M. Hazumi, M. Nagai, O. Tajima

Proceedings Volume 8452, 845237 (2012) https://doi.org/10.1117/12.925784

KEYWORDS: Demodulation, Sensors, Polarization, Modulation, Microwave radiation, Interference (communication), Phase shift keying, Diodes, Polarizers, Polarimetry

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Proceedings Article | 5 October 2012 Paper

Paper

POLARBEAR-2 optical and polarimeter designs

Tomotake Matsumura, Peter Ade, Kam Arnold, Darcy Barron, Julian Borrill, Scott Chapman, Yuji Chinone, Matt Dobbs, Josquin Errard, Giullo Fabbian, Adnan Ghribi, William Grainger, Nils Halverson, Masaya Hasegawa, Kaori Hattori, Masashi Hazumi, William Holzapfel, Yuki Inoue, Sou Ishii, Yuta Kaneko, Brian Keating, Zigmund Kermish, Nobuhiro Kimura, Ted Kisner, William Kranz, Adrian Lee, Frederick Matsuda, Hideki Morii, Michael Myers, Haruki Nishino, Takahiro Okamura, Erin Quealy, Christian Reichardt, Paul Richards, Darin Rosen, Colin Ross, Akie Shimizu, Michael Sholl, Praween Siritanasak, Peter Smith, Nathan Stebor, Radek Stompor, Aritoki Suzuki, Jun-ichi Suzuki, Suguru Takada, Ken-ichi Tanaka, Takayuki Tomaru, Oliver Zahn

Proceedings Volume 8452, 84523E (2012) https://doi.org/10.1117/12.926770

KEYWORDS: Receivers, Polarization, Telescopes, Modulation, Space telescopes, Polarimetry, Sensors, Optical design, Thermography, Microwave radiation

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Proceedings Article | 27 September 2012 Paper

Paper

The bolometric focal plane array of the POLARBEAR CMB experiment

K. Arnold, P. A. Ade, A. Anthony, D. Barron, D. Boettger, J. Borrill, S. Chapman, Y. Chinone, M. Dobbs, J. Errard, G. Fabbian, D. Flanigan, G. Fuller, A. Ghribi, W. Grainger, N. Halverson, M. Hasegawa, K. Hattori, M. Hazumi, W. Holzapfel, J. Howard, P. Hyland, A. Jaffe, B. Keating, Z. Kermish, T. Kisner, M. Le Jeune, A. Lee, E. Linder, M. Lungu, F. Matsuda, T. Matsumura, N. Miller, X. Meng, H. Morii, S. Moyerman, M. Myers, H. Nishino, H. Paar, E. Quealy, C. Reichardt, P. Richards, C. Ross, A. Shimizu, C. Shimmin, M. Shimon, M. Sholl, P. Siritanasak, H. Spieler, N. Stebor, B. Steinbach, R. Stompor, A. Suzuki, T. Tomaru, C. Tucker, O. Zahn

Proceedings Volume 8452, 84521D (2012) https://doi.org/10.1117/12.927057

KEYWORDS: Bolometers, Sensors, Dielectrics, Antennas, Silicon, Semiconducting wafers, Niobium, Staring arrays, Reactive ion etching, Telescopes

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Proceedings Article | 24 September 2012 Paper

Paper

The POLARBEAR experiment

Zigmund Kermish, Peter Ade, Aubra Anthony, Kam Arnold, Darcy Barron, David Boettger, Julian Borrill, Scott Chapman, Yuji Chinone, Matt Dobbs, Josquin Errard, Giulio Fabbian, Daniel Flanigan, George Fuller, Adnan Ghribi, Will Grainger, Nils Halverson, Masaya Hasegawa, Kaori Hattori, Masashi Hazumi, William Holzapfel, Jacob Howard, Peter Hyland, Andrew Jaffe, Brian Keating, Theodore Kisner, Adrian Lee, Maude Le Jeune, Eric Linder, Marius Lungu, Frederick Matsuda, Tomotake Matsumura, Xiaofan Meng, Nathan Miller, Hideki Morii, Stephanie Moyerman, Mike Myers, Haruki Nishino, Hans Paar, Erin Quealy, Christian Reichardt, Paul Richards, Colin Ross, Akie Shimizu, Meir Shimon, Chase Shimmin, Mike Sholl, Praween Siritanasak, Helmuth Spieler, Nathan Stebor, Bryan Steinbach, Radek Stompor, Aritoki Suzuki, Takayuki Tomaru, Carole Tucker, Oliver Zahn

Proceedings Volume 8452, 84521C (2012) https://doi.org/10.1117/12.926354

KEYWORDS: Polarization, Sensors, Receivers, Telescopes, Bolometers, Cryogenics, Calibration, Signal detection, Optical filters, Semiconducting wafers

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Proceedings Article | 24 September 2012 Paper

Paper

Laboratory characterization of CMB polarimeters using novel calibration system with cryogenically cooled loads

Makoto Nagai, Koji Ishidoshiro, Masaya Hasegawa, Masashi Hazumi, Osamu Tajima

Proceedings Volume 8452, 845236 (2012) https://doi.org/10.1117/12.925626

KEYWORDS: Polarimetry, Polarization, Switches, Sensors, Receivers, Temperature metrology, Mirrors, Amplifiers, Modulation, Field effect transistors

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Proceedings Article | 24 September 2012 Paper

Paper

The POLARBEAR-2 experiment

Takayuki Tomaru, Masashi Hazumi, Adrian Lee, Peter Ade, Kam Arnold, Darcy Barron, Julian Borrill, Scott Chapman, Yuji Chinone, Matt Dobbs, Josquin Errard, Giullo Fabbian, Adnan Ghribi, William Grainger, Nils Halverson, Masaya Hasegawa, Kaori Hattori, William Holzapfel, Yuki Inoue, Sou Ishii, Yuta Kaneko, Brian Keating, Zigmund Kermish, Nobuhiro Kimura, Ted Kisner, William Kranz, Frederick Matsuda, Tomotake Matsumura, Hideki Morii, Michael Myers, Haruki Nishino, Takahiro Okamura, Erin Quealy, Christian Reichardt, Paul Richards, Darin Rosen, Colin Ross, Akie Shimizu, Michael Sholl, Praween Siritanasak, Peter Smith, Nathan Stebor, Radek Stompor, Aritoki Suzuki, Jun-ichi Suzuki, Suguru Takada, Ken-ichi Tanaka, Oliver Zahn

Proceedings Volume 8452, 84521H (2012) https://doi.org/10.1117/12.926158

KEYWORDS: Receivers, Bolometers, Polarization, Optical filters, Sensors, Telescopes, Superconductors, Lenses, Semiconducting wafers, Mirrors

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Proceedings Article | 21 September 2012 Paper

Paper

LiteBIRD: a small satellite for the study of B-mode polarization and inflation from cosmic background radiation detection

M. Hazumi, J. Borrill, Y. Chinone, M. Dobbs, H. Fuke, A. Ghribi, M. Hasegawa, K. Hattori, M. Hattori, W. Holzapfel, Y. Inoue, K. Ishidoshiro, H. Ishino, K. Karatsu, N. Katayama, I. Kawano, A. Kibayashi, Y. Kibe, N. Kimura, K. Koga, E. Komatsu, A. Lee, H. Matsuhara, T. Matsumura, S. Mima, K. Mitsuda, H. Morii, S. Murayama, M. Nagai, R. Nagata, S. Nakamura, K. Natsume, H. Nishino, A. Noda, T. Noguchi, I. Ohta, C. Otani, P. Richards, S. Sakai, N. Sato, Y. Sato, Y. Sekimoto, A. Shimizu, K. Shinozaki, H. Sugita, A. Suzuki, T. Suzuki, O. Tajima, S. Takada, Y. Takagi, Y. Takei, T. Tomaru, Y. Uzawa, H. Watanabe, N. Yamasaki, M. Yoshida, T. Yoshida, K. Yotsumoto

Proceedings Volume 8442, 844219 (2012) https://doi.org/10.1117/12.926743

KEYWORDS: Polarization, Satellites, Microwave radiation, Mirrors, Multiplexing, Bolometers, Semiconducting wafers, Physics, Superconductors, X-rays

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Proceedings Article | 28 July 2010 Paper

Paper

The POLARBEAR CMB polarization experiment

K. Arnold, P. Ade, A. E. Anthony, F. Aubin, D. Boettger, J. Borrill, C. Cantalupo, M. A. Dobbs, J. Errard, D. Flanigan, A. Ghribi, N. Halverson, M. Hazumi, W. Holzapfel, J. Howard, P. Hyland, A. Jaffe, B. Keating, T. Kisner, Z. Kermish, A. Lee, E. Linder, M. Lungu, T. Matsumura, N. Miller, X. Meng, M. Myers, H. Nishino, R. O'Brient, D. O'Dea, H. Paar, C. Reichardt, I. Schanning, A. Shimizu, C. Shimmin, M. Shimon, H. Spieler, B. Steinbach, R. Stompor, A. Suzuki, T. Tomaru, H. T. Tran, C. Tucker, E. Quealy, P. Richards, O. Zahn

Proceedings Volume 7741, 77411E (2010) https://doi.org/10.1117/12.858314

KEYWORDS: Sensors, Polarization, Bolometers, Antennas, Receivers, Dielectrics, Cryogenics, Telescopes, Photons, Lenses

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Showing 5 of 47 publications

Conference Committee Involvement (5)

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Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X

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12 June 2018 | Austin, Texas, United States

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