Prof. Yuki Sakurai Profile

Prof. Yuki Sakurai

Project Assistant Professor at Suwa University of Science

SPIE Involvement:

Author

Publications (28)

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 | 16 August 2024 Presentation + Paper

Presentation + Paper

Breadboard model assembly and characterization of a sapphire achromatic half-wave plate for LiteBIRD low-frequency telescope

Mitsuharu Kusama, Kosuke Aizawa, Ryosuke Akizawa, Teruhito Iida, Kiyoshi Ikuma, Kuniaki Konishi, Asuka Maeda, Tomotake Matsumura, Haruyuki Sakurai, Yuki Sakurai, Ryota Takaku

Proceedings Volume 13102, 131020A (2024) https://doi.org/10.1117/12.3019752

KEYWORDS: Sapphire, Design, Glues, Polarization, Data modeling, Transmittance, Telescopes, Modulation, Surface finishing, Polarimetry

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Proceedings Article | 16 August 2024 Poster + Paper

Poster + Paper

Development status of the cryogenic holder mechanism for LiteBIRD LFT PMU

Ryosuke Akizawa, Teruhito Iida, Ryota Takaku, Kosuke Aizawa, Tommaso Ghigna, Thuong Duc Hoang, Nobuhiko Katayama, Asuka Maeda, Tomotake Matsumura, Hideki Nakajima, Hiroyuki Ohsaki, Satsuki Okumura, Yuki Sakurai, Yutaka Terao

Proceedings Volume 13102, 131021X (2024) https://doi.org/10.1117/12.3019552

KEYWORDS: Temperature sensors, Mechanical engineering, Mechatronics, Cryogenic equipment, Cryomechanics, Cryogenics, Design, Thermal modeling, Actuators, Polarization, Telescopes

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Proceedings Article | 16 August 2024 Presentation + Paper

Presentation + Paper

Laser ablated subwavelength structure antireflection coating on an alumina lens

Shaul Hanany, Scott Cray, Jan Düsing, Calvin Firth, Jürgen Koch, Kuniaki Konishi, Rex Lam, Tomotake Matsumura, Haruyuki Sakurai, Yuki Sakurai, Aritoki Suzuki, Ryota Takaku, Qi Wen, Alexander Wienke, Andrew Yan

Proceedings Volume 13102, 131020E (2024) https://doi.org/10.1117/12.3019092

KEYWORDS: Lenses, Laser ablation, Antireflective coatings, Optical components, Transmittance

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Proceedings Article | 16 August 2024 Poster + Paper

Poster + Paper

3D printed alumina as a millimeter-wave optical element

Rex Lam, Scott Cray, Calvin Firth, Shaul Hanany, Jürgen Koch, Kuniaki Konishi, Tomotake Matsumura, Yuki Sakurai, Haruyuki Sakurai, Ryota Takaku, Andrew Yan

Proceedings Volume 13102, 131022N (2024) https://doi.org/10.1117/12.3019180

KEYWORDS: 3D printing, Reflection, Refraction, Optical components, Laser ablation, 3D metrology, Data transmission, Reflectivity, Data modeling

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Testbed preparation of a small prototype polarization modulator for LiteBIRD Low-Frequency Telescope

Thuong Hoang, Tomotake Matsumura, Ryota Takaku, Takashi Hasebe, Tommaso Ghigna, Nobuhiko Katayama, Yuki Sakurai, Kunimoto Komatsu, Teruhito Iida, Yurika Hoshino, Shinya Sugiyama, Hirokazu Ishino

Proceedings Volume 12190, 121902O (2022) https://doi.org/10.1117/12.2630653

KEYWORDS: Computer programming, Modulation, Prototyping, Polarization, Telescopes, Magnetism, Sensors, Cryogenics, Signal detection, Data modeling

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Impact of the effective thickness from anti-reflective sub-wavelength structures in achromatic half-wave plate design

Ryota Takaku, Susanna Azzoni, Tommaso Ghigna, Takashi Hasebe, Thuong Hoang, Yurika Hoshino, Nobuhiko Katayama, Kunimoto Komatsu, Kuniaki Konishi, Makoto Kuwata-Gonokami, Tomotake Matsumura, Haruyuki Sakurai, Yuki Sakurai, Shinya Sugiyama, Noriko Yamasaki, Junji Yumoto

Proceedings Volume 12190, 121902K (2022) https://doi.org/10.1117/12.2629213

KEYWORDS: Modulation, Transmittance, Sapphire, Phase shift keying, Laser ablation, Autoregressive models, Refractive index, Phase shifts, Cryogenics, Antireflective coatings

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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 | 27 August 2022 Poster + Paper

Poster + Paper

Heat dissipation of rotation mechanism of polarization modulator unit for LiteBIRD low-frequency telescope

Takashi Hasebe, Tommaso Ghigna, Thuong Hoang, Yurika Hoshino, Teruhito Iida, Nobuhiko Katayama, Tomotake Matsumura, Hiroyuki Ohsaki, Yuki Sakurai, Shinya Sugiyama, Ryota Takaku, Yutaka Terao

Proceedings Volume 12180, 1218053 (2022) https://doi.org/10.1117/12.2630636

KEYWORDS: Telescopes, Polarization, Cryogenics, Sensors, Temperature metrology, Optical encoders, Modulators, Microwave radiation, Signal detection, Modulation

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SPIE Journal Paper | 17 February 2022

Mechanical strength and millimeter-wave transmittance spectrum of stacked sapphire plates bonded by sodium silicate solution

Takayuki Toda, Yuki Sakurai, Hirokazu Ishino, Tomotake Matsumura, Kunimoto Komatsu, Nobuhiko Katayama

JATIS, Vol. 8, Issue 01, 014008, (February 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.1.014008

KEYWORDS: Sapphire, Transmittance, Polishing, Surface finishing, Silicates, Sodium, Interfaces, Refractive index, Optical inspection, Ions

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SPIE Journal Paper | 31 August 2021

Design of a frequency-independent optic axis Pancharatnam-based achromatic half-wave plate

Kunimoto Komatsu, Hirokazu Ishino, Nobuhiko Katayama, Tomotake Matsumura, Yuki Sakurai

JATIS, Vol. 7, Issue 03, 034005, (August 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.3.034005

KEYWORDS: Polarization, Wave plates, Optical alignment, Polarimetry, Telescopes, Sapphire, Tolerancing, Signal detection, Sensors, Refractive index

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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 | 18 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Demonstration of five-layer phase-flat achromatic half-wave plate with anti-reflective structures and superconducting magnetic bearing for CMB polarization experiments

Kunimoto Komatsu, Hirokazu Ishino, Hirokazu Kataza, Kuniaki Konishi, Makoto Kuwata-Gonokami, Nobuhiko Katayama, Shinya Sugiyama, Tomotake Matsumura, Haruyuki Sakurai, Yuki Sakurai, Ryota Takaku, Junji Yumoto

Proceedings Volume 11453, 114534I (2020) https://doi.org/10.1117/12.2560486

KEYWORDS: Superconductors, Magnetism, Polarization, Phase shift keying, Modulation, Sapphire, Modulators, Wave plates, Signal detection, Sensors

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Proceedings Article | 18 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Simons Observatory Small Aperture Telescope overview

Kenji Kiuchi, Shunsuke Adachi, Aamir Ali, Kam Arnold, Peter Ashton, Jason Austermann, Andrew Bazako, James Beall, Yuji Chinone, Gabriele Coppi, Kevin Crowley, Simon Dicker, Bradley Dober, Shannon Duff, Giulio Fabbian, Nicholas Galitzki, Joseph Golec, Jon Gudmundsson, Kathleen Harrington, Masaya Hasegawa, Makoto Hattori, Charles Hill, Shuay-Pwu Patty Ho, Johannes Hubmayr, Bradley Johnson, Daisuke Kaneko, Nobuhiko Katayama, Brian Keating, Akito Kusaka, Jack Lashner, Adrian Lee, Frederick Matsuda, Heather McCarrick, Masaaki Murata, Federico Nati, Yume Nishinomiya, Lyman Page, Mayuri Sathyanarayana Rao, Christian Reichardt, Kana Sakaguri, Yuki Sakurai, Joseph Sibert, Jacob Spisak, Osamu Tajima, Grant Teply, Tomoki Terasaki, Tran Tsan, Samantha Walker, Edward Wollack, Zhilei Xu, Kyohei Yamada, Mario Zannoni, Ningfeng Zhu

Proceedings Volume 11445, 114457L (2020) https://doi.org/10.1117/12.2562016

KEYWORDS: Telescopes, Observatories, Polarization, Cryogenics, Atmospheric optics, Microwave radiation, Sensors, Bolometers, Singular optics, Optical systems

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Proceedings Article | 16 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Design of the frequency independent optic axis of the Pancharatnam base achromatic half-wave plate for CMB polarization experiment

Kunimoto Komatsu, Hirokazu Ishino, Nobuhiko Katayama, Tomotake Matsumura, Yuki Sakurai, Ryota Takaku

Proceedings Volume 11453, 114534B (2020) https://doi.org/10.1117/12.2562092

KEYWORDS: Polarization, Modulation, Multilayers, Electromagnetism, Polarimetry, Prototyping

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Proceedings Article | 16 December 2020 Presentation + Paper

Presentation + Paper

Demonstration of anti-reflective structures over a large area for CMB polarization experiments

Ryota Takaku, Shaul Hanany, Yurika Hoshino, Hiroaki Imada, Hirokazu Ishino, Nobuhiko Katayama, Kunimoto Komatsu, Kuniaki Konishi, Makoto Kuwata Gonokami, Tomotake Matsumura, Kazuhisa Mitsuda, Haruyuki Sakurai, Yuki Sakurai, Qi Wen, Noriko Yamasaki, Karl Young, Junji Yumoto

Proceedings Volume 11453, 114531A (2020) https://doi.org/10.1117/12.2562028

KEYWORDS: Polarization, Sapphire, Cryogenics, Silicon, Optical components, Refraction, Patterned sapphire substrate, Extremely high frequency, Lenses, Antireflective coatings

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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 | 15 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Evaluation of reconstructed angular error of a continuous rotating HWP for LiteBIRD

Shinya Sugiyama, Tomotake Matsumura, Yuki Sakurai, Nobuhiko Katayama, Satoru Takakura, Makoto Tashiro, Yukikatsu Terada, Kosuke Sato, Satoru Katsuda, Yurika Hoshino, Ryota Takaku, Kunimoto Komatsu

Proceedings Volume 11443, 114436X (2020) https://doi.org/10.1117/12.2576290

KEYWORDS: Polarization, Telescopes, Superconductors, Satellites, Optical encoders, Nitrogen, Modulators, Microwave radiation, Magnetism, Liquids

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Proceedings Article | 15 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Mechanical strength and millimeter-wave transmission spectrum of stacked sapphire plates bonded by sodium silicate solution

Takayuki Toda, Hirokazu Ishino, Kunimoto Komatsu, Tomotake Matsumura, Yuki Sakurai, Nobuhiko Katayama

Proceedings Volume 11453, 114534K (2020) https://doi.org/10.1117/12.2562366

KEYWORDS: Sapphire, Silicates, Sodium, Polarization, Modulators, Telescopes, Space operations, Sensors, LIGO, Interfaces

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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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SPIE Journal Paper | 20 November 2019

Demonstration of the broadband half-wave plate using the nine-layer sapphire for the cosmic microwave background polarization experiment

Kunimoto Komatsu, Tomotake Matsumura, Hiroaki Imada, Hirokazu Ishino, Nobuhiko Katayama, Yuki Sakurai

JATIS, Vol. 5, Issue 04, 044008, (November 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.4.044008

KEYWORDS: Modulation, Phase shift keying, Sapphire, Polarization, Refractive index, Sensors, Extremely high frequency, Microwave radiation, Transmittance, Signal detection

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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 | 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 | 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 | 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 | 29 July 2016 Paper

Paper

Optical designing of LiteBIRD

Hajime Sugai, Shingo Kashima, Kimihiro Kimura, Tomotake Matsumura, Masanori Inoue, Makoto Ito, Toshiyuki Nishibori, Yutaro Sekimoto, Hirokazu Ishino, Yuki Sakurai, Hiroaki Imada, Takenori Fujii

Proceedings Volume 9904, 99044H (2016) https://doi.org/10.1117/12.2232008

KEYWORDS: Telescopes, Optical design, Mirrors, Optical instrument design, Point spread functions, Polarization, Space telescopes, Code v, Microwave radiation, Satellites

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Showing 5 of 28 publications

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