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  2. Shugo Oguri

Shugo Oguri

  (小栗 秀悟)

Profile Information

Affiliation
Assistant Professor, Institute of Space and Astronautical Science, Department of Space Astronomy and Astrophysics, Japan Aerospace Exploration Agency
Degree
Ph. D(Jul, 2012, The University of Tokyo)
Researcher number
20751176
ORCID ID
 https://orcid.org/0000-0002-5902-2672
J-GLOBAL ID
201901005927826680
researchmap Member ID
B000348585

宇宙素粒子物理学が専門です。現在はCMB偏光観測を行う衛星実験LiteBIRDの研究開発をしています。

宇宙初期の物理学、特にインフレーションやダークマターなどに興味があります。

Research Interests

 6

Research Areas

 1

Research History

 5

Papers

 55
  • Yusuke Takase, Léo VACHER, H. Ishino, Guillaume Patanchon, L. Montier, Samantha Stever, K. Ishizaka, Yuya Nagano, Wang Wang, Jonathan Aumont, K. Aizawa, A. Anand, C. Baccigalupi, M. Ballardini, A.J. Banday, R.B. Barreiro, N. Bartolo, S. Basak, M. Bersanelli, M. Bortolami, T. Brinckmann, E. Calabrese, P. Campeti, E. Carinos, A. Carones, F.J. Casas, K. Cheung, L. Clermont, F. Columbro, A. Coppolecchia, F. Cuttaia, G. D'Alessandro, P. de Bernardis, T. de Haan, E. de la Hoz, S. Della Torre, P. Diego-Palazuelos, H.K. Eriksen, J. Errard, F. Finelli, U. Fuskeland, G. Galloni, M. Galloway, M. Gervasi, T. Ghigna, S. Giardiello, C. Gimeno-Amo, E. Gjerløw, R. González González, A. Gruppuso, M. Hazumi
    Journal of Cosmology and Astroparticle Physics, Dec 1, 2024  
    <jats:title>Abstract</jats:title> <jats:p>Large angular scale surveys in the absence of atmosphere are essential for measuring the primordial B-mode power spectrum of the Cosmic Microwave Background (CMB). Since this proposed measurement is about three to four orders of magnitude fainter than the temperature anisotropies of the CMB, in-flight calibration of the instruments and active suppression of systematic effects are crucial. We investigate the effect of changing the parameters of the scanning strategy on the in-flight calibration effectiveness, the suppression of the systematic effects themselves, and the ability to distinguish systematic effects by null-tests. Next-generation missions such as <jats:italic>LiteBIRD</jats:italic>, modulated by a Half-Wave Plate (HWP), will be able to observe polarisation using a single detector, eliminating the need to combine several detectors to measure polarisation, as done in many previous experiments and hence avoiding the consequent systematic effects. While the HWP is expected to suppress many systematic effects, some of them will remain. We use an analytical approach to comprehensively address the mitigation of these systematic effects and identify the characteristics of scanning strategies that are the most effective for implementing a variety of calibration strategies in the multi-dimensional space of common spacecraft scan parameters. We verify that <jats:italic>LiteBIRD</jats:italic>'s <jats:italic>standard configuration</jats:italic> yields good performance on the metrics we studied. We also present <jats:monospace>Falcons.jl</jats:monospace>, a fast spacecraft scanning simulator that we developed to investigate this scanning parameter space.</jats:p>
  • Frederick T. Matsuda, Ryo Nagata, Kimihide Odagiri, Shugo Oguri, Yutaro Sekimoto, Hayato Takakura, Tommaso Ghigna
    Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 82-82, Aug 23, 2024  
  • Hayato Takakura, Yutaro Sekimoto, Kimihide Odagiri, Rion Takahashi, Fumiya Miura, Frederick T. Matsuda, Shugo Oguri
    Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 207-207, Aug 23, 2024  
  • Miku Tsujii, Jochem J. A. Baselmans, Jihoon Choi, Antonio H. M. Coppens, Alessandro Fasano, Ricardo T. 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 W. Peel, Rafael Rebolo, José A. Rubiño-Martín, Yutaro Sekimoto, Yoshinori Sueno, Junya Suzuki, Tohru Taino, Osamu Tajima, Tomonaga Tanaka, David J. Thoen, Nozomu Tomita, Yuta Tsuji, Tomohisa Uchida, Eunil Won, Mitsuhiro Yoshida
    Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, Aug 16, 2024  
  • Fumiya Miura, Hayato Takakura, Yutaro Sekimoto, Junji Inatani, Frederick T. Matsuda, Shugo Oguri, Miu Kashiwazaki, Shogo Nakamura, Tomonaga Ueno, Akira Ito, Motoi Kawamura, Osamu Kawasaki, Atsushi Sakai
    Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, 124-124, Aug 16, 2024  
  • Rion Takahashi, Hayato Takakura, Yutaro Sekimoto, Fumiya Miura, Junji Inatani, Frederick T. Matsuda, Shugo Oguri, Shogo Nakamura
    Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, 120-120, Aug 16, 2024  
  • Fumiya Miura, Hayato Takakura, Yutaro Sekimoto, Junji Inatani, Frederick Matsuda, Shugo Oguri, Shogo Nakamura
    Applied Optics, Aug 8, 2024  
    Mitigating the far sidelobes of a wide field-of-view telescope is one of the critical issues for polarization observation of the cosmic microwave background. Since even small reflections of stray light at the millimeter-wave absorbers inside the telescope may create nonnegligible far sidelobes, we have developed a method to measure the reflectance of millimeter-wave absorbers, including diffuse reflections. By applying the planar near-field measurement method to the absorbers, we have enabled two-dimensional diffuse-reflection measurements, in addition to characterizing specular reflection. We have measured the reflectance of five samples (TK RAM Large and Small Tiles and Eccosorb AN-72, HR-10, and LS-22) at two angles of incidence in the frequency range from 70 GHz to 110 GHz. Compared with conventional horn-to-horn measurements, we obtained a consistent specular reflectance with a higher precision, less affected by standing waves. We have demonstrated that the angular response and diffuse-to-specular reflectance ratio differ among various materials. The measurements also imply that some absorbers may affect the polarization direction when reflecting the incident waves.
  • Shugo Oguri, Toru Kaga, Frederick Matsuda, Kazufusa Noda, Yasutaka Satou, Yutaro Sekimoto, Yuichi Togashi
    JOURNAL OF LOW TEMPERATURE PHYSICS, 216(1-2) 119-128, Jul, 2024  
  • Y Sueno, J J A Baselmans, A H M Coppens, R T Génova-Santos, M Hattori, S Honda, K Karatsu, H Kutsuma, K Lee, T Nagasaki, S Oguri, C Otani, M Peel, J Suzuki, O Tajima, T Tanaka, M Tsujii, D J Thoen, E Won
    Progress of Theoretical and Experimental Physics, 2024(2), Jan 22, 2024  
    Abstract Understanding telescope pointing (i.e. line of sight) is important for observing the cosmic microwave background (CMB) and astronomical objects. The Moon is a candidate astronomical source for pointing calibration. Although the visible size of the Moon (30′) is larger than that of the planets, we can frequently observe the Moon once a month with a high signal-to-noise ratio. We developed a method for performing pointing calibration using observational data from the Moon. We considered the tilts of the telescope axes as well as the encoder and collimation offsets for pointing calibration. In addition, we evaluated the effects of the nonuniformity of the brightness temperature of the Moon, which is a dominant systematic error. As a result, we successfully achieved a pointing accuracy of 3.3′. This is one order of magnitude smaller than an angular resolution of 36′. This level of accuracy competes with past achievements in other ground-based CMB experiments using observational data from the planets.
  • Ryo Nakano, Hayato Takakura, Yutaro Sekimoto, Junji Inatani, Masahiro Sugimoto, Shugo Oguri, Frederick Matsuda
    Journal of Astronomical Telescopes, Instruments, and Systems, 9(02), Apr 19, 2023  
  • Miki Kurihara, Masahiro Tsujimoto, Megan E. Eckart, Caroline A. Kilbourne, Frederick T. Matsuda, Brian Mclaughlin, Shugo Oguri, Frederick S. Porter, Yoh Takei, Yoichi Kochibe
    Journal of Astronomical Telescopes, Instruments, and Systems, 9(1) 18004, Jan 1, 2023  
  • E Allys, K Arnold, J Aumont, R Aurlien, S Azzoni, C Baccigalupi, A J Banday, R Banerji, R B Barreiro, N Bartolo, L Bautista, D Beck, S Beckman, M Bersanelli, F Boulanger, M Brilenkov, M Bucher, E Calabrese, P Campeti, A Carones, F J Casas, A Catalano, V Chan, K Cheung, Y Chinone, S E Clark, F Columbro, G D’Alessandro, P de Bernardis, T de Haan, E de  la Hoz, M De Petris, S Della Torre, P Diego-Palazuelos, M Dobbs, T Dotani, J M Duval, T Elleflot, H K Eriksen, J Errard, T Essinger-Hileman, F Finelli, R Flauger, C Franceschet, U Fuskeland, M Galloway, K Ganga, M Gerbino, M Gervasi, R T Génova-Santos, T Ghigna, S Giardiello, E Gjerløw, J Grain, F Grupp, A Gruppuso, J E Gudmundsson, N W Halverson, P Hargrave, T Hasebe, M Hasegawa, M Hazumi, S Henrot-Versillé, B Hensley, L T Hergt, D Herman, E Hivon, R A Hlozek, A L Hornsby, Y Hoshino, J Hubmayr, K Ichiki, T Iida, H Imada, H Ishino, G Jaehnig, N Katayama, A Kato, R Keskitalo, T Kisner, Y Kobayashi, A Kogut, K Kohri, E Komatsu, K Komatsu, K Konishi, N Krachmalnicoff, C L Kuo, L Lamagna, M Lattanzi, A T Lee, C Leloup, F Levrier, E Linder, G Luzzi, J Macias-Perez, T Maciaszek, B Maffei, D Maino, S Mandelli, E Martínez-González, S Masi, M Massa, S Matarrese, F T Matsuda, T Matsumura, L Mele, M Migliaccio, Y Minami, A Moggi, J Montgomery, L Montier, G Morgante, B Mot, Y Nagano, T Nagasaki, R Nagata, R Nakano, T Namikawa, F Nati, P Natoli, S Nerval, F Noviello, K Odagiri, S Oguri, H Ohsaki, L Pagano, A Paiella, D Paoletti, A Passerini, G Patanchon, F Piacentini, M Piat, 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 Sasaki, D Scott, Y Sekimoto, K Shinozaki, M Shiraishi, P Shirron, G Signorelli, F Spinella, S Stever, R Stompor, S Sugiyama, R M Sullivan, A Suzuki, T L Svalheim, E Switzer, R Takaku, H Takakura, Y Takase, A Tartari, Y Terao, J Thermeau, H Thommesen, K L Thompson, M Tomasi, M Tominaga, M Tristram, M Tsuji, M Tsujimoto, L Vacher, P Vielva, N Vittorio, W Wang, K Watanuki, I K Wehus, J Weller, B Westbrook, J Wilms, E J Wollack, J Yumoto, M Zannoni
    Progress of Theoretical and Experimental Physics, 2023(4), Nov 21, 2022  
    Abstract LiteBIRD the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics. The Japan Aerospace Exploration Agency (JAXA) selected LiteBIRD in May 2019 as a strategic large-class (L-class) mission, with an expected launch in the late 2020s using JAXA’s H3 rocket. LiteBIRD is planned to orbit the Sun-Earth Lagrangian point L2, where it will map the cosmic microwave background (CMB) polarization over the entire sky for three years, with three telescopes in 15 frequency bands between 34 and 448 GHz, to achieve an unprecedented total sensitivity of 2.2 μK-arcmin, with a typical angular resolution of 0.5○ at 100 GHz. The primary scientific objective of LiteBIRD is to search for the signal from cosmic inflation, either making a discovery or ruling out well-motivated inflationary models. The measurements of LiteBIRD will also provide us with insight into the quantum nature of gravity and other new physics beyond the standard models of particle physics and cosmology. We provide an overview of the LiteBIRD project, including scientific objectives, mission and system requirements, operation concept, spacecraft and payload module design, expected scientific outcomes, potential design extensions and synergies with other projects. Subject Index LiteBIRD cosmic inflation, cosmic microwave background, B-mode polarization, primordial gravitational waves, quantum gravity, space telescope
  • Ryo Nakano, Hayato Takakura, Yutaro Sekimoto, Junji Inatani, Masahiro Sugimoto, Shugo Oguri, Frederick T. Matsuda
    Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, 12190, Aug 31, 2022  
  • Shugo Oguri, Tadayasu Dotani, Masahito Isshiki, Shota Iwabuchi, Tooru Kaga, Frederick T. Matsuda, Yasuyuki Miyazaki, Baptiste Mot, Ryo Nagata, Katsuhiro Narasaki, Hiroyuki Ogawa, Toshiaki Okudaira, Kimihide Odagiri, Thomas Prouve, Gilles Roudil, Yasutaka Satoh, Yutaro Sekimoto, Toyoaki Suzuki, Kazuya Watanuki, Seiji Yoshida, Keisuke Yoshihara
    Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 12180, Aug 27, 2022  
  • Hayato Takakura, Ryo Nakano, Yutaro Sekimoto, Junji Inatani, Masahiro Sugimoto, Frederick T. Matsuda, Shugo Oguri
    Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 12180, Aug 27, 2022  
  • Kimihide Odagiri, Masaru Saijo, Keisuke Shinozaki, Frederick Matsuda, Shugo Oguri, Toyoaki Suzuki, Hiroyuki Ogawa, Yutaro Sekimoto, Tadayasu Dotani, Kazuya Watanuki, Ryo Sugimoto, Keisuke Yoshihara, Katsuhiro Narasaki, Masahito Isshiki, Seiji Yoshida, Thomas Prouve, Jean-Marc Duval, Keith L. Thompson
    SPACE TELESCOPES AND INSTRUMENTATION 2022: OPTICAL, INFRARED, AND MILLIMETER WAVE, 12180, Aug, 2022  
  • Tomoki Terasaki, Kenji Kiuchi, Shunsuke Honda, Shugo Oguri, Yume Nishinomiya, Akito Kusaka
    Journal of Low Temperature Physics, 209(3-4) 441-448, May 31, 2022  
  • P. Vielva, E. Martínez-González, F. J. Casas, T. Matsumura, S. Henrot-Versillé, E. Komatsu, J. Aumont, R. Aurlien, C. Baccigalupi, A. J. Banday, R. B. Barreiro, N. Bartolo, E. Calabrese, K. Cheung, F. Columbro, A. Coppolecchia, P. De Bernardis, T. De Haan, E. De La Hoz, M. De Petris, S. Della Torre, P. Diego-Palazuelos, H. K. Eriksen, J. Errard, F. Finelli, C. Franceschet, U. Fuskeland, M. Galloway, K. Ganga, M. Gervasi, R. T. Génova-Santos, T. Ghigna, E. Gjerløw, A. Gruppuso, M. Hazumi, D. Herranz, E. Hivon, K. Kohri, L. Lamagna, C. Leloup, J. Macias-Perez, S. Masi, F. T. Matsuda, G. Morgante, R. Nakano, F. Nati, P. Natoli, S. Nerval, K. Odagiri, S. Oguri, L. Pagano, A. Paiella, D. Paoletti, F. Piacentini, G. Polenta, G. Puglisi, M. Remazeilles, A. Ritacco, J. A. Rubino-Martin, D. Scott, Y. Sekimoto, M. Shiraishi, G. Signorelli, H. Takakura, A. Tartari, K. L. Thompson, M. Tristram, L. Vacher, N. Vittorio, I. K. Wehus, M. Zannoni
    Journal of Cosmology and Astroparticle Physics, 2022(4), Apr, 2022  
  • Y Sueno, S Honda, H Kutsuma, S Mima, C Otani, S Oguri, J Suzuki, O Tajima
    Progress of Theoretical and Experimental Physics, 2022(3), Mar 9, 2022  
    Abstract A microwave kinetic inductance detector (MKID) is a cutting-edge superconducting detector. It comprises a resonator circuit constructed with a superconducting film on a dielectric substrate. To expand its field of application, it is important to establish a method to suppress the two-level system (TLS) noise that is caused by the electric fluctuations between the two energy states at the surface of the substrate. The electric field density can be decreased by expanding the strip width (S) and gap width from the ground plane (W) in the MKID circuit, allowing the suppression of TLS noise. However, this effect has not yet been confirmed for MKIDs made with niobium films on silicon substrates. In this study, we demonstrate its effectiveness for such MKIDs. We expanded the dimension of the circuit from (S, W) = (3.00 μm, 4.00 μm) to (S, W) = (5.00 μm, 23.7 μm), and achieved an increased suppression of 5.5 dB in TLS noise.
  • Kyungmin Lee, Ricardo T. Génova-Santos, Masashi Hazumi, Shunsuke Honda, Hiroki Kutsuma, Shugo Oguri, Chiko Otani, Mike W. Peel, Yoshinori Sueno, Junya Suzuki, Osamu Tajima, Eunil Won
    The Astrophysical Journal, 915(2) 88-88, Feb 5, 2021  
    We compute the expected sensitivity on measurements of optical depth to reionization for a ground-based experiment at Teide Observatory. We simulate polarized partial sky maps for the GroundBIRD experiment at the frequencies 145 and 220 GHz. We perform fits for the simulated maps with our pixel-based likelihood to extract the optical depth to reionization. The noise levels of polarization maps are estimated as 110 $\mu\mathrm{K~arcmin}$ and 780 $ \mu\mathrm{K~arcmin}$ for 145 and 220 GHz, respectively, by assuming a three-year observing campaign and sky coverages of 0.537 for 145 GHz and 0.462 for 220 GHz. Our sensitivities for the optical depth to reionization are found to be $\sigma_\tau$=0.030 with the simulated GroundBIRD maps, and $\sigma_\tau$=0.012 by combining with the simulated QUIJOTE maps at 11, 13, 17, 19, 30, and 40 GHz.
  • Masashi Hazumi, Peter A. Ade, Alexandre Adler, Erwan Allys, Kam Arnold, Didier Auguste, Jonathan Aumont, Ragnhild Aurlien, Jason Austermann, Carlo Baccigalupi, Anthony J. Banday, R. Banjeri, Rita B. Barreiro, Soumen Basak, Jim Beall, Dominic Beck, Shawn Beckman, Juan Bermejo, Paolo de Bernardis, Marco Bersanelli, Julien Bonis, Julian Borrill, Francois Boulanger, Sophie Bounissou, Maksym Brilenkov, Michael Brown, Martin Bucher, Erminia Calabrese, Paolo Campeti, Alessandro Carones, Francisco J. Casas, Anthony Challinor, Victor Chan, Kolen Cheung, Yuji Chinone, Jean F. Cliche, Loris Colombo, Fabio Columbro, Javier Cubas, Ari Cukierman, David Curtis, Giuseppe D'Alessandro, Nadia Dachlythra, Marco De Petris, Clive Dickinson, Patricia Diego-Palazuelos, Matt Dobbs, Tadayasu Dotani, Lionel Duband, Shannon Duff, Jean M. Duval, Ken Ebisawa, Tucker Elleflot, Hans K. Eriksen, Josquin Errard, Thomas Essinger-Hileman, Fabio Finelli, Raphael Flauger, Cristian Franceschet, Unni Fuskeland, Mathew Galloway, Ken Ganga, Jian R. Gao, Ricardo Genova-Santos, Martina Gerbino, Massimo Gervasi, Tommaso Ghigna, Eirik Gjerløw, Marcin L. Gradziel, Julien Grain, Frank Grupp, Alessandro Gruppuso, Jon E. Gudmundsson, Tijmen de Haan, Nils W. Halverson, Peter Hargrave, Takashi Hasebe, Masaya Hasegawa, Makoto Hattori, Sophie Henrot-Versillé, Daniel Herman, Diego Herranz, Charles A. Hill, Gene Hilton, Yukimasa Hirota, Eric Hivon, Renee A. Hlozek, Yurika Hoshino, Elena de la Hoz, Johannes Hubmayr, Kiyotomo Ichiki, Teruhito Iida, Hiroaki Imada, Kosei Ishimura, Hirokazu Ishino, Greg Jaehnig, Tooru Kaga, Shingo Kashima, Nobuhiko Katayama, Akihiro Kato, Takeo Kawasaki, Reijo Keskitalo, Theodore Kisner, Yohei Kobayashi, Nozomu Kogiso, Alan Kogut, Kazunori Kohri, Eiichiro Komatsu, Kunimoto Komatsu, Kuniaki Konishi, Nicoletta Krachmalnicoff, Ingo Kreykenbohm, Chao-Lin L. Kuo, Akihiro Kushino, Luca Lamagna, Jeff V. Lanen, Massimiliano Lattanzi, Adrian T. Lee, Clément Leloup, François Levrier, Eric Linder, Thibaut Louis, Gemma Luzzi, Thierry Maciaszek, Bruno Maffei, Davide Maino, Muneyoshi Maki, Stefano Mandelli, Enrique Martinez-Gonzalez, Silvia Masi, Tomotake Matsumura, Aniello Mennella, Marina Migliaccio, Yuto Minami, Kazuhisa Mitsuda, Joshua Montgomery, Ludovic Montier, Gianluca Morgante, Baptiste Mot, Yasuhiro Murata, John A. Murphy, Makoto Nagai, Yuya Nagano, Taketo Nagasaki, Ryo Nagata, Shogo Nakamura, Toshiya Namikawa, Paolo Natoli, Simran Nerval, Toshiyuki Nishibori, Haruki Nishino, Fabio Noviello, Créidhe O'Sullivan, Hideo Ogawa, Hiroyuki Ogawa, Shugo Oguri, Hiroyuki Ohsaki, Izumi S. Ohta, Norio Okada, Nozomi Okada, Luca Pagano, Alessandro Paiella, Daniela Paoletti, Guillaume Patanchon, Julien Peloton, Francesco Piacentini, Giampaolo Pisano, Gianluca Polenta, Davide Poletti, Thomas Prouvé, Giuseppe Puglisi, Damien Rambaud, Christopher Raum, Sabrina Realini, Martin Reinecke, Mathieu Remazeilles, Alessia Ritacco, Gilles Roudil, Jose A. Rubino-Martin, Megan Russell, Haruyuki Sakurai, Yuki Sakurai, Maura Sandri, Manami Sasaki, Giorgio Savini, Douglas Scott, Joseph Seibert, Yutaro Sekimoto, Blake Sherwin, Keisuke Shinozaki, Maresuke Shiraishi, Peter Shirron, Giovanni Signorelli, Graeme Smecher, Samantha Stever, Radek Stompor, Hajime Sugai, Shinya Sugiyama, Aritoki Suzuki, Junichi Suzuki, Trygve L. Svalheim, Eric Switzer, Ryota Takaku, Hayato Takakura, Satoru Takakura, Yusuke Takase, Youichi Takeda, Andrea Tartari, Ellen Taylor, Yutaka Terao, Harald Thommesen, Keith L. Thompson, Ben Thorne, Takayuki Toda, Maurizio Tomasi, Mayu Tominaga, Neil Trappe, Matthieu Tristram, Masatoshi Tsuji, Masahiro Tsujimoto, Carole Tucker, Joe Ullom, Gerard Vermeulen, Patricio Vielva, Fabrizio Villa, Michael Vissers, Nicola Vittorio, Ingunn Wehus, Jochen Weller, Benjamin Westbrook, Joern Wilms, Berend Winter, Edward J. Wollack, Noriko Y. Yamasaki, Tetsuya Yoshida, Junji Yumoto, Mario Zannoni, Andrea Zonca
    Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave, 11443, Dec 21, 2020  
  • Yutaro Sekimoto, Peter Ade, Alexandre Adler, Erwan Allys, Kam Arnold, Didier Auguste, Jonathan Aumont, Ragnhild Aurlien, Jason Austermann, Carlo Baccigalupi, Anthony Banday, Ranajoy Banerji, Rita Barreiro, Soumen Basak, Jim Beall, Dominic Beck, Shawn Beckman, Juan Bermejo, Paolo de Bernardis, Marco Bersanelli, Julien Bonis, Julian Borrill, Francois Boulanger, Sophie Bounissou, Maksym Brilenkov, Michael Brown, Martin Bucher, Erminia Calabrese, Paolo Campeti, Alessandro Carones, Francisco Casas, Anthony Challinor, Victor Chan, Kolen Cheung, Yuji Chinone, Jean Cliche, Loris Colombo, Fabio Columbro, Javier Cubas, Ari Cukierman, David Curtis, Giuseppe D'Alessandro, Nadia Dachlythra, Marco De Petris, Clive Dickinson, Patricia Diego-Palazuelos, Matt Dobbs, Tadayasu Dotani, Lionel Duband, Shannon Duff, Jean Duval, Ken Ebisawa, Tucker Elleflot, Hans Eriksen, Josquin Errard, Thomas Essinger-Hileman, Fabio Finelli, Raphael Flauger, Cristian Franceschet, Unni Fuskeland, Mathew Galloway, Ken Ganga, Jian Gao, Ricardo Genova-Santos, Martina Gerbino, Massimo Gervasi, Tommaso Ghigna, Eirik Gjerløw, Marcin Gradziel, Julien Grain, Frank Grupp, Alessandro Gruppuso, Jon Gudmundsson, Tijmen de Haan, Nils Halverson, Peter Hargrave, Takashi Hasebe, Masaya Hasegawa, Makoto Hattori, Masashi Hazumi, Sophie Henrot-Versillé, Daniel Herman, Diego Herranz, Charles Hill, Gene Hilton, Yukimasa Hirota, Eric hivon, Renee Hlozek, Yurika Hoshino, Elena de la Hoz, Johannes Hubmayr, Kiyotomo Ichiki, Teruhito iida, Hiroaki Imada, Kosei Ishimura, Hirokazu Ishino, Greg Jaehnig, Tooru Kaga, Shingo Kashima, Nobuhiko Katayama, Akihiro Kato, Takeo Kawasaki, Reijo Keskitalo, Theodore Kisner, Yohei Kobayashi, Nozomu Kogiso, Alan Kogut, Kazunori Kohri, Eiichiro Komatsu, Kunimoto Komatsu, Kuniaki Konishi, Nicoletta Krachmalnicoff, Ingo Kreykenbohm, Chao-Lin Kuo, Akihiro Kushino, Luca Lamagna, Jeff Lanen, Massimiliano Lattanzi, Adrien Lee, Clément Leloup, François Levrier, Eric Linder, Thibaut Louis, Gemma Luzzi, Thierry Maciaszek, Bruno Maffei, Davide Maino, Muneyoshi Maki, Stefano Mandelli, Enrique Martinez-Gonzalez, Silvia Masi, Tomotake Matsumura, Aniello Mennella, Marina Migliaccio, Yuto Minanmi, Kazuhisa Mitsuda, Josua Montgomery, Ludovic Montier, Gianluca Morgante, Baptise Mot, Yasuhiro Murata, John Murphy, Makoto Nagai, Yuya Nagano, Takeo Nagasaki, Ryo Nagata, Shogo Nakamura, Toshiya Namikawa, Paolo Natoli, Simran Nerval, Toshiyuki Nishibori, Haruki Nishino, Créidhe O'Sullivan, Hideo Ogawa, Hiroyuki Ogawa, Shugo Oguri, Hiroyuki Osaki, Izumi Ohta, Norio Okada, Nozomi Okada, Luca Pagano, Alessandro Paiella, Daniela Paoletti, Guillaume Patanchon, Julien Peloton, Francesco Piacentini, Giampaolo Pisano, Gianluca Polenta, Davide Poletti, Thomas Prouvé, Giuseppe Puglisi, Damien Tambaud, Christopher Raum, Sabrina Realini, Martin Reinecke, Mathieu Remazeilles, Alessa Ritacco, Gilles Roudil, Jose Rubino-Martin, Megan Russell, Haruyuki Sakurai, Yuki Sakurai, Maura Sandri, Manami Sasaki, Giorgio Savini, Douglas Scott, Joseph Seibert, Blake Sherwin, Keisuke Shinozaki, Maresuke Shiraishi, Peter Shirron, Giovanni Signorelli, Graeme Smecher, Samantha Stever, Radek Stompor, Hajime Sugai, Shinya Sugiyama, aritoki Suzuki, Junichi Suzuki, Trygve Svalheim, Eric Switzer, Ryota Takaku, hayato Takakura, satoru Takakura, Yusuke Takase, Youichi Takeda, Andrea Tartari, Ellen Taylor, Yutaka Terao, Harald Thommesen, Keith L. Thompson, Ben Thorne, Takayuki Toda, Maurizio Tomasi, Mayu Tominaga, Neil Trappe, Matthieu Tristram, Masatoshi Tsuji, Masahiro Tsujimoto, Carole Tucker, Joe Ullom, Gerard Vermeulen, Patricio Vielva, Fabrizio Villa, Michael Vissers, Nicola Vittorio, Ingunn Wehus, Jochen Weller, Benjamin Westbrook, Joern Wilms, Berend Winter, Edward Wollack, Noriko Y. Yamasaki, Tetsuya Yoshida, Junji Yumoto, Mario Zannoni, Andrea Zonca
    Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X, 11453, Dec 16, 2020  
  • Ludovic Montier, Baptiste Mot, Paolo de Bernardis, Bruno Maffei, Giampaolo Pisano, Fabio Columbro, Jon E. Gudmundsson, Sophie Henrot-Versillé, Luca Lamagna, Joshua Montgomery, Thomas Prouvé, Megan Russell, Giorgio Savini, Samantha Stever, Keith L. Thompson, Masahiro Tsujimoto, Carole Tucker, Benjamin Westbrook, Peter A. Ade, Alexandre Adler, Erwan Allys, Kam Arnold, Didier Auguste, Jonathan Aumont, Ragnhild Aurlien, Jason Austermann, Carlo Baccigalupi, Anthony J. Banday, Ranajoy Banerji, Rita B. Barreiro, Soumen Basak, Jim Beall, Dominic Beck, Shawn Beckman, Juan Bermejo, Marco Bersanelli, Julien Bonis, Julian Borrill, Francois Boulanger, Sophie Bounissou, Maksym Brilenkov, Michael Brown, Martin Bucher, Erminia Calabrese, Paolo Campeti, Alessandro Carones, Francisco J. Casas, Anthony Challinor, Victor Chan, Kolen Cheung, Yuji Chinone, Jean F. Cliche, Loris Colombo, Javier Cubas, Ari Cukierman, David Curtis, Giuseppe D'Alessandro, Nadia Dachlythra, Marco De Petris, Clive Dickinson, Patricia Diego-Palazuelos, Matt Dobbs, Tadayasu Dotani, Lionel Duband, Shannon Duff, Jean M. Duval, Ken Ebisawa, Tucker Elleflot, Hans K. Eriksen, Josquin Errard, Thomas Essinger-Hileman, Fabio Finelli, Raphael Flauger, Cristian Franceschet, Unni Fuskeland, Mathew Galloway, Ken Ganga, Jian R. Gao, Ricardo Genova-Santos, Martina Gerbino, Massimo Gervasi, Tommaso Ghigna, Eirik Gjerløw, Marcin L. Gradziel, Julien Grain, Frank Grupp, Alessandro Gruppuso, Tijmen de Haan, Nils W. Halverson, Peter Hargrave, Takashi Hasebe, Masaya Hasegawa, Makoto Hattori, Masashi Hazumi, Daniel Herman, Diego Herranz, Charles A. Hill, Gene Hilton, Yukimasa Hirota, Eric Hivon, Renee A. Hlozek, Yurika Hoshino, Elena de la Hoz, Johannes Hubmayr, Kiyotomo Ichiki, Teruhito Iida, Hiroaki Imada, Kosei Ishimura, Hirokazu Ishino, Greg Jaehnig, Tooru Kaga, Shingo Kashima, Nobuhiko Katayama, Akihiro Kato, Takeo Kawasaki, Reijo Keskitalo, Theodore Kisner, Yohei Kobayashi, Nozomu Kogiso, Alan Kogut, Kazunori Kohri, Eiichiro Komatsu, Kunimoto Komatsu, Kuniaki Konishi, Nicoletta Krachmalnicoff, Ingo Kreykenbohm, Chao-Lin L. Kuo, Akihiro Kushino, Jeff V. Lanen, Massimiliano Lattanzi, Adrian T. Lee, Clément Leloup, François Levrier, Eric Linder, Thibaut Louis, Gemma Luzzi, Thierry Maciaszek, Davide Maino, Muneyoshi Maki, Stefano Mandelli, Enrique Martinez-Gonzalez, Silvia Masi, Tomotake Matsumura, Aniello Mennella, Marina Migliaccio, Yuto Minami, Kazuhisa Mitsuda, Gianluca Morgante, Yasuhiro Murata, John A. Murphy, Makoto Nagai, Yuya Nagano, Taketo Nagasaki, Ryo Nagata, Shogo Nakamura, Toshiya Namikawa, Paolo Natoli, Simran Nerval, Toshiyuki Nishibori, Haruki Nishino, Créidhe O'Sullivan, Hideo Ogawa, Hiroyuki Ogawa, Shugo Oguri, Hiroyuki Ohsaki, Izumi S. Ohta, Norio Okada, Nozomi Okada, Luca Pagano, Alessandro Paiella, Daniela Paoletti, Guillaume Patanchon, Julien Peloton, Francesco Piacentini, Gianluca Polenta, Davide Poletti, Giuseppe Puglisi, Damien Rambaud, Christopher Raum, Sabrina Realini, Martin Reinecke, Mathieu Remazeilles, Alessia Ritacco, Gilles Roudil, Jose A. Rubino-Martin, Haruyuki Sakurai, Yuki Sakurai, Maura Sandri, Manami Sasaki, Douglas Scott, Joseph Seibert, Yutaro Sekimoto, Blake Sherwin, Keisuke Shinozaki, Maresuke Shiraishi, Peter Shirron, Giovanni Signorelli, Graeme Smecher, Radek Stompor, Hajime Sugai, Shinya Sugiyama, Aritoki Suzuki, Junichi Suzuki, Trygve L. Svalheim, Eric Switzer, Ryota Takaku, Hayato Takakura, Satoru Takakura, Yusuke Takase, Youichi Takeda, Andrea Tartari, Ellen Taylor, Yutaka Terao, Harald Thommesen, Ben Thorne, Takayuki Toda, Maurizio Tomasi, Mayu Tominaga, Neil Trappe, Matthieu Tristram, Masatoshi Tsuji, Joe Ullom, Gerard Vermeulen, Patricio Vielva, Fabrizio Villa, Michael Vissers, Nicola Vittorio, Ingunn Wehus, Jochen Weller, Joern Wilms, Berend Winter, Edward J. Wollack, Noriko Y. Yamasaki, Tetsuya Yoshida, Junji Yumoto, Mario Zannoni, Andrea Zonca
    Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave, 11443, Dec 15, 2020  
  • Shunsuke Honda, Jihoon Choi, Ricardo T. 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
    Ground-based and Airborne Telescopes VIII, 11445, Dec 13, 2020  
  • Kyungmin Lee, Jihoon Choi, Ricardo Tanausú Génova-Santos, Makoto Hattori, Masashi Hazumi, Shunsuke Honda, Takuji Ikemitsu, Hidesato Ishida, Hikaru Ishitsuka, Yonggil Jo, Kenichi Karatsu, Kenji Kiuchi, Junta Komine, Ryo Koyano, Hiroki Kutsuma, Satoru Mima, Makoto Minowa, Joonhyeok Moon, Makoto Nagai, Taketo Nagasaki, Masato Naruse, Shugo Oguri, Chiko Otani, Michael Peel, Rafael Rebolo, José Alberto Rubiño-Martín, Yutaro Sekimoto, Junya Suzuki, Tohru Taino, Osamu Tajima, Nozomu Tomita, Tomohisa Uchida, Eunil Won, Mitsuhiro Yoshida
    Journal of Low Temperature Physics, 200(5-6) 384-391, Nov 16, 2020  
  • Hiroki Kutsuma, Sueno, Yoshinori, Makoto Hattori, Mima, Satoru, Shugo OGURI, Otani, Chiko, Junya Suzuki, Tajima, Osamu
    AIP Adv., 10(9) 095320-095320, Sep 21, 2020  Peer-reviewed
    A microwave kinetic inductance detector (MKID) is a cutting-edge superconducting detector, and its principle is based on a superconducting resonator circuit. The superconducting transition temperature (Tc) of the MKID is an important parameter because various MKID characterization parameters depend on it. In this paper, we propose a method to measure the Tc of the MKID by changing the applied power of the readout microwaves. A small fraction of the readout power is deposited in the MKID, and the number of quasiparticles in the MKID increases with this power. Furthermore, the quasiparticle lifetime decreases with the number of quasiparticles. Therefore, we can measure the relation between the quasiparticle lifetime and the detector response by rapidly varying the readout power. From this relation, we estimate the intrinsic quasiparticle lifetime. This lifetime is theoretically modeled by Tc, the physical temperature of the MKID device, and other known parameters. We obtain Tc by comparing the measured lifetime with that acquired using the theoretical model. Using an MKID fabricated with aluminum, we demonstrate this method at a 0.3 K operation. The results are consistent with those obtained by Tc measured by monitoring the transmittance of the readout microwaves with the variation in the device temperature. The method proposed in this paper is applicable to other types, such as a hybrid-type MKID.
  • K. Kiuchi, S. Oguri, S. Mima, C. Otani, A. Kusaka
    Journal of Low Temperature Physics, 200(5-6) 353-362, Sep 1, 2020  
  • Nozomu Tomita, Shugo Oguri, Yoshizumi Inoue, Makoto Minowa, Taketo Nagasaki, Jun'ya Suzuki, Osamu Tajima
    Journal of Cosmology and Astroparticle Physics, 2020(9), Jun 4, 2020  Peer-reviewed
  • H. Kutsuma, M. Hattori, R. Koyano, S. Mima, S. Oguri, C. Otani, T. Taino, O. Tajima
    Applied Physics Letters, 115(3) 032603-032603, Jul 15, 2019  Peer-reviewed
    Superconducting detectors are a modern technology applied in various fields. The microwave kinetic inductance detector (MKID) is one of cutting-edge superconducting detector. It is based on the principle of a superconducting resonator circuit. A radiation entering the MKID breaks the Cooper pairs in the superconducting resonator, and the intensity of the radiation is detected as a variation of the resonant condition. Therefore, calibration of the detector responsivity, i.e., the variation of the resonant phase with respect to the number of Cooper-pair breaks (quasiparticles), is important. We propose a method for responsivity calibration. Microwaves used for the detector readout locally raise the temperature in each resonator, which increases the number of quasiparticles. Since the magnitude of the temperature rise depends on the power of readout microwaves, the number of quasiparticles also depends on the power of microwaves. By changing the power of the readout microwaves, we simultaneously measure the phase difference and lifetime of quasiparticles. We calculate the number of quasiparticles from the measured lifetime and by using a theoretical formula. This measurement yields a relation between the phase response as a function of the number of quasiparticles. We demonstrate this responsivity calibration using the MKID maintained at 285mK. We also confirm consistency between the results obtained using this method and conventional calibration methods in terms of the accuracy.
  • M. Hazumi, P. A.R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, C. Baccigalupi, D. Barron, S. Basak, S. Beckman, J. Borrill, F. Boulanger, M. Bucher, E. Calabrese, Y. Chinone, S. Cho, A. Cukierman, D. W. Curtis, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, L. Duband, A. Ducout, J. Dunkley, J. M. Duval, T. Elleflot, H. K. Eriksen, J. Errard, J. Fischer, T. Fujino, T. Funaki, U. Fuskeland, K. Ganga, N. Goeckner-Wald, J. Grain, N. W. Halverson, T. Hamada, T. Hasebe, M. Hasegawa, K. Hattori, M. Hattori, L. Hayes, N. Hidehira, C. A. Hill, G. Hilton, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, M. Inoue, Y. Inoue, K. D. Irwin, H. Ishino, O. Jeong, H. Kanai, D. Kaneko, S. Kashima, N. Katayama, T. Kawasaki, S. A. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C. L. Kuo, N. A. Kurinsky, A. Kusaka, A. Lazarian, A. T. Lee, D. Li, E. Linder, B. Maffei, A. Mangilli, M. Maki, T. Matsumura, S. Matsuura, D. Meilhan, S. Mima, Y. Minami, K. Mitsuda, L. Montier, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, H. Nishino, T. Nitta, T. Noguchi, H. Ogawa, S. Oguri, N. Okada, A. Okamoto
    Journal of Low Temperature Physics, 194(5-6) 443-452, Mar 15, 2019  
  • T. Nagasaki, J. Choi, R. T. Génova-Santos, M. Hattori, M. Hazumi, H. Ishitsuka, K. Karatsu, K. Kikuchi, R. Koyano, H. Kutsuma, K. Lee, S. Mima, M. Minowa, M. Nagai, M. Naruse, S. Oguri, C. Otani, R. Rebolo, J. A. Rubiño-Martín, Y. Sekimoto, M. Semoto, J. Suzuki, T. Taino, O. Tajima, N. Tomita, T. Uchida, E. Won, M. Yoshida
    Journal of Low Temperature Physics, 193(5-6) 1066-1074, Dec 1, 2018  Peer-reviewed
  • A. Suzuki, P. A.R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, C. Baccigalupi, D. Barron, S. Basak, S. Beckman, J. Borrill, F. Boulanger, M. Bucher, E. Calabrese, Y. Chinone, S. Cho, B. Crill, A. Cukierman, D. W. Curtis, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, L. Duband, A. Ducout, J. Dunkley, J. M. Duval, T. Elleflot, H. K. Eriksen, J. Errard, J. Fischer, T. Fujino, T. Funaki, U. Fuskeland, K. Ganga, N. Goeckner-Wald, J. Grain, N. W. Halverson, T. Hamada, T. Hasebe, M. Hasegawa, K. Hattori, M. Hattori, L. Hayes, M. Hazumi, N. Hidehira, C. A. Hill, G. Hilton, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, M. Inoue, Y. Inoue, K. D. Irwin, H. Ishino, O. Jeong, H. Kanai, D. Kaneko, S. Kashima, N. Katayama, T. Kawasaki, S. A. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C. L. Kuo, N. A. Kurinsky, A. Kusaka, A. Lazarian, A. T. Lee, D. Li, E. Linder, B. Maffei, A. Mangilli, M. Maki, T. Matsumura, S. Matsuura, D. Meilhan, S. Mima, Y. Minami, K. Mitsuda, L. Montier, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, H. Nishino, T. Nitta, T. Noguchi, H. Ogawa, S. Oguri
    Journal of Low Temperature Physics, 193(5-6) 1048-1056, Dec 1, 2018  
  • T. Hasebe, S. Kashima, P. A.R. Ade, Y. Akiba, D. Alonso, K. Arnold, J. Aumont, C. Baccigalupi, D. Barron, S. Basak, S. Beckman, J. Borrill, F. Boulanger, M. Bucher, E. Calabrese, Y. Chinone, H. M. Cho, A. Cukierman, D. W. Curtis, T. de Haan, M. Dobbs, A. Dominjon, T. Dotani, L. Duband, A. Ducout, J. Dunkley, J. M. Duval, T. Elleflot, H. K. Eriksen, J. Errard, J. Fischer, T. Fujino, T. Funaki, U. Fuskeland, K. Ganga, N. Goeckner-Wald, J. Grain, N. W. Halverson, T. Hamada, M. Hasegawa, K. Hattori, M. Hattori, L. Hayes, M. Hazumi, N. Hidehira, C. A. Hill, G. Hilton, J. Hubmayr, K. Ichiki, T. Iida, H. Imada, M. Inoue, Y. Inoue, K. D. Irwin, H. Ishino, O. Jeong, H. Kanai, D. Kaneko, N. Katayama, T. Kawasaki, S. A. Kernasovskiy, R. Keskitalo, A. Kibayashi, Y. Kida, K. Kimura, T. Kisner, K. Kohri, E. Komatsu, K. Komatsu, C. L. Kuo, N. A. Kurinsky, A. Kusaka, A. Lazarian, A. T. Lee, D. Li, E. Linder, B. Maffei, A. Mangilli, M. Maki, T. Matsumura, S. Matsuura, D. Meilhan, S. Mima, Y. Minami, K. Mitsuda, L. Montier, M. Nagai, T. Nagasaki, R. Nagata, M. Nakajima, S. Nakamura, T. Namikawa, M. Naruse, H. Nishino, T. Nitta, T. Noguchi, H. Ogawa, S. Oguri, N. Okada, A. Okamoto
    Journal of Low Temperature Physics, 193(5-6) 841-850, Dec 1, 2018  
  • J. Suzuki, H. Ishitsuka, K. Lee, S. Oguri, O. Tajima, N. Tomita, E. Won
    Journal of Low Temperature Physics, 193(3-4) 562-569, Nov, 2018  
  • Kutsuma Hiroki, Hattori Makoto, Kiuchi Kenji, Mima Satoru, Nagasaki Taketo, Oguri Shugo, Suzuki Junya, Tajima Osamu
    JOURNAL OF LOW TEMPERATURE PHYSICS, 193(3-4) 203-208, Nov, 2018  Peer-reviewed
  • Kyungmin Lee, H. Ishitsuka, S. Oguri, J. Suzuki, O. Tajima, N. Tomita, Eunil Won, M. Yoshida
    Journal of Low Temperature Physics, 1-8, Jun 7, 2018  Peer-reviewed
  • Hiroki Watanabe, Satoru Mima, Shugo Oguri, Mitsuhiro Yoshida, Masashi Hazumi, Hirokazu Ishino, Hikaru Ishitsuka, Atsuko Kibayashi, Chiko Otani, Nobuaki Sato, Osamu Tajima, Nozomu Tomita
    IEICE TRANSACTIONS ON ELECTRONICS, E100C(3) 298-304, Mar, 2017  Peer-reviewed
  • C. Otani, O. Tajima, S. Oguri, S. Mima, J. Choi, T. Damayanthi, N. Furukawa, M. Hattori, M. Hazumi, H. Ishitsuka, R. Koyano, M. Minowa, M. Nagai, T. Nagasaki, Y. Sekimoto, M. Semoto, T. Taino, N. Tomita, T. Uchida, E. Won, M. Yoshida
    27th International Symposium on Space Terahertz Technology, ISSTT 2016, 2017  
  • WATANABE Hiroki, SATO Nobuaki, TAJIMA Osamu, TOMITA Nozomu, MIMA Satoru, OGURI Shugo, YOSHIDA Mitsuhiro, HAZUMI Masashi, ISHINO Hirokazu, ISHITSUKA Hikaru, KIBAYASHI Atsuko, OTANI Chiko
    IEICE Transactions on Electronics, 100(3) 298-304, 2017  Peer-reviewed
    <p>Antenna-coupled kinetic inductance detectors (KIDs) have recently shown great promise as microwave detection systems with a large number of channels. However, this technique, still has difficulties in eliminating the radiation loss of the resonator signals. To solve this problem, we propose a design in which the absorption area connected to an antenna is located on the ground-side of a coplanar waveguide. Thereby, radiation loss due to leakage from the resonator to the antenna can be considerably reduced. This simple design also enables the use of a contact aligner for fabrication. We have developed KIDs with this design, named as the ground-side absorption (GSA)-KIDs and demonstrated that they have higher quality factors than those of the existing KIDs, while maintaining a good total sensitivity.</p>
  • S. Oguri, J. Choi, T. Damayanthi, M. Hattori, M. Hazumi, H. Ishitsuka, K. Karatsu, S. Mima, M. Minowa, T. Nagasaki, C. Otani, Y. Sekimoto, O. Tajima, N. Tomita, M. Yoshida, E. Won
    JOURNAL OF LOW TEMPERATURE PHYSICS, 184(3-4) 786-792, Aug, 2016  Peer-reviewed
  • Kuroda, Y., Oguri, S., Kato, Y., Nakata, R., Inoue, Y., Ito, C., Minowa, M.
    Phys.Lett.B, 758 286-291, Jul 10, 2016  Peer-reviewed
  • N. Tomita, H. Jeong, J. Choi, H. Ishitsuka, S. Mima, T. Nagasaki, S. Oguri, O. Tajima
    Journal of Low Temperature Physics, 184(1-2) 443-448, Jul 1, 2016  
  • Shugo Oguri, Jihoort 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, Nozoniu Tomita, Eunil Won, Tomohisa Uchida, Mitsuhiro Yoshida
    GROUND-BASED AND AIRBORNE TELESCOPES VI, 9906, 2016  Peer-reviewed
  • Kenichi Karatsu, Satoru Mima, Shugo Oguri, Jihoon Choi, R. M. Thushara Damayanthi, Agnes Dominjon, Noboru Furukawa, Hirokazu Ishino, Hikaru Ishitsuka, Atsuko Kibayashi, Yoshiaki Kibe, Hitoshi Kiuchi, Kensuke Koga, Masato Naruse, Tom Nitta, Takashi Noguchi, Takashi Okada, Chiko Otani, Shigeyuki Sekiguchi, Yutaro Sekimoto, Masakazu Sekine, Shibo Shu, Osamu Tajima, Kenta Takahashi, Nozomu Tomita, Hiroki Watanabe, Mitsuhiro Yoshida
    IEICE TRANSACTIONS ON ELECTRONICS, E98C(3) 207-218, Mar, 2015  Peer-reviewed
  • KARATSU Kenichi, KIBAYASHI Atsuko, KIBE Yoshiaki, KIUCHI Hitoshi, KOGA Kensuke, NARUSE Masato, NITTA Tom, NOGUCHI Takashi, OKADA Takashi, OTANI Chiko, SEKIGUCHI Shigeyuki, MIMA Satoru, SEKIMOTO Yutaro, SEKINE Masakazu, SHU Shibo, TAJIMA Osamu, TAKAHASHI Kenta, TOMITA Nozomu, WATANABE Hiroki, YOSHIDA Mitsuhiro, OGURI Shugo, CHOI Jihoon, M. THUSHARA DAMAYANTHI R., DOMINJON Agnes, FURUKAWA Noboru, ISHINO Hirokazu, ISHITSUKA Hikaru
    IEICE Transactions on Electronics, 98(3) 207-218, 2015  Peer-reviewed
    A precise measurement of Cosmic Microwave Background (CMB) provides us rich information about the universe. In particular, its asymmetric polarization patterns, B-modes, are smoking gun signature of inflationary universe. Magnitude of the B-modes is order of 10 nK. Its measurement requires a high sensitive millimeter-wave telescope with a large number of superconducting detectors on its focal plane. Microwave Kinetic Inductance Detector (MKID) is appropriate detector for this purpose. MKID camera has been developed in cooperation of National Astronomical Observatory of Japan (NAOJ), Institute of Physical and Chemical Research (RIKEN), High Energy Accelerator Research Organization (KEK), and Okayama University. Our developments of MKID include: fabrication of high-quality superconducting film; optical components for a camera use; and readout electronics. For performance evaluation of total integrated system of our MKID camera, a calibration system was also developed. The system was incorporated in a 0.1 K dilution refrigerator with modulated polarization source. These developed technologies are applicable to other types of detectors.
  • S. Oguri, J. Choi, M. Hazumi, M. Kawai, O. Tajima, E. Won, M. Yoshida
    JOURNAL OF LOW TEMPERATURE PHYSICS, 176(5-6) 691-697, Sep, 2014  Peer-reviewed
  • K. Takahashi, S. Mima, S. Oguri, C. Otani, O. Tajima, H. Watanabe, M. Yoshida
    JOURNAL OF LOW TEMPERATURE PHYSICS, 176(5-6) 822-828, Sep, 2014  Peer-reviewed
  • Oguri, S., Ishitsuka, H., Choi, J., Kawai, M., Tajima, O.
    Rev.Sci.Instrum., 85(8) 086101-086101, 2014  Peer-reviewed
  • Oguri, S., Kuroda, Y., Kato, Y., Nakata, R., Inoue, Y., Ito, C., Minowa, M.
    Nucl.Instrum.Meth.A, 757 33-39, 2014  Peer-reviewed
  • 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. S. 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
    SPACE TELESCOPES AND INSTRUMENTATION 2014: OPTICAL, INFRARED, AND MILLIMETER WAVE, 9143 91431F, 2014  Peer-reviewed

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