Dr. Hiroshi Akitaya Profile

Dr. Hiroshi Akitaya

Senior Resercher at Chiba Institute of Technology

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Author

Publications (13)

Proceedings Article | 12 March 2021 Paper

AA Tau polarimetric observation using Kanata HONIR instrument

Wei Liu, Koji Kawabata, Hiroshi Akitaya

Proceedings Volume 11763, 117630K (2021) https://doi.org/10.1117/12.2585776

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Proceedings Article | 13 December 2020 Presentation + Paper

Development of an optical and near-infrared telescope onboard the HiZ-GUNDAM mission

Kohji Tsumura, Daisuke Yonetoku, Koji Kawabata, Shuji Matsuura, Hirofumi Noda, Yuji Urata, Yuu Niino, Kei Sano, Akisato Ohashi, Akihiro Doi, Hiroshi Akitaya, Akihiro Miyasaka, Miku Kurimata, Yoshikatsu Kawata, Makoto Arimoto, Hirofumi Okita

Proceedings Volume 11443, 114430R (2020) https://doi.org/10.1117/12.2560654

KEYWORDS: Telescopes, Infrared telescopes, Optical instrument design, X-ray telescopes, Astronomy, Gamma radiation, X-rays, Satellites, Infrared detectors, Mirrors

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Proceedings Article | 13 December 2020 Presentation + Paper

High-redshift gamma-ray burst for unraveling the Dark Ages Mission: HiZ-GUNDAM

Daisuke Yonetoku, Tatehiro Mihara, Akihiro Doi, Takanori Sakamoto, Kohji Tsumura, Kunihito Ioka, Yusuke Amaya, Makoto Arimoto, Teruaki Enoto, Takeru Fujii, Hatsune Goto, Shuichi Gunji, Junko Hiraga, Hirokazu Ikeda, Nobuyuki Kawai, Shunsuke Kurosawa, Jin Li, Yoshitomo Maeda, Ikuyuki Mitsuishi, Toshio Murakami, Yujin Nakagawa, Naoki Ogino, Masanori Ohno, Tatsuya Sawano, Kensyo Sei, Motoko Serino, Satoshi Sugita, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Toru Tanimori, Makoto Tashiro, Hiroshi Tomida, Hyeongsoon Wang, Tomohiro Yamaguchi, Ayumi Yamamoto, Kazutaka Yamaoka, Makoto Yamauchi, Yoichi Yatsu, Atsumasa Yoshida, Daito Yuhi, Hiroshi Akitaya, Akihiko Fukui, Yoshifusa Ita, Hidehiro Kaneda, Koji Kawabata, Yoshikatsu Kawata, Miku Kurimata, Toshio Matsumoto, Shuji Matsuura, Akihiro Miyasaka, Kentaro Motohara, Norio Narita, Hirofumi Noda, Akisato Ohashi, Hirofumi Okita, Kei Sano, Masaomi Tanaka, Yuji Urata, Takehiko Wada, Hikaru Yamaguchi, Kenshi Yanagisawa, Michitoshi Yoshida, Katsuaki Asano, Kohei Inayoshi, Susumu Inoue, Hirotaka Ito, Hideyuki Izumiura, Norita Kawanaka, Tomoya Kinugawa, Shota Kisaka, Kenta Kiuchi, Jin Matsumoto, Akira Mizuta, Kohta Murase, Hiroki Nagakura, Shigehiro Nagataki, Yoshikazu Nakada, Takashi Nakamura, Yuu Niino, Yudai Suwa, Keitaro Takahashi, Takahiro Tanaka, Kenji Toma, Tomonori Totani, Ryo Yamazaki, Jun'ichi Yokoyama

Proceedings Volume 11444, 114442Z (2020) https://doi.org/10.1117/12.2560603

KEYWORDS: Gamma radiation, Astronomy, X-ray optics, Satellite communications, Satellites, Observatories, X-ray detectors, X-ray telescopes, X-ray imaging, X-rays

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Proceedings Article | 13 December 2020 Presentation + Paper

Development of an optical photon counting imager using a monolithic Geiger APD array

Takeshi Nakamori, Yuga Ouchi, Risa Ogihara, Toshio Terasawa, Yuhei Kato, Shinpei Shibata, Hiroshi Akitaya, Koji Kawabata

Proceedings Volume 11454, 1145418 (2020) https://doi.org/10.1117/12.2560925

KEYWORDS: Photon counting, Imaging systems, Avalanche photodetectors, Prototyping, Astronomical imaging, Astronomy, Image resolution, Avalanche photodiodes, Sensor performance, Sensors

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Proceedings Article | 13 December 2020 Poster + Paper

(KFISP) Kottamia Faint Imaging Spectro-Polarimeter: opto-mechanical design and performance analysis

Yosry Azzam, Gamal Ali, F. I. Elnagahy, I. Zead, Nasser Ahmed, Hamed Ismail, Somaya Saad, A. Shokry, Ali Takey, Y. H. Hendy, Peter Mack, Michitoshi Yoshida, Koji Kawabata, Hiroshi Akitaya, M. Darwish, Ahmed Fouad, Islam Helmy, Nohamed Ismail, Doaa Elsayed, Ola Ali, Mohamed Abdel-sabour, Mona Molham, A. Haroon, A. M. I. Osman, M. Hamdy, I. Issa, M. Abo-Elala, A. Essam

Proceedings Volume 11447, 114479U (2020) https://doi.org/10.1117/12.2561664

KEYWORDS: Optomechanical design, Polarimetry, Cameras, Calibration, Telescopes, Collimators, Optical instrument design, Astronomical telescopes, Astronomy, Observatories

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Proceedings Article | 13 December 2020 Poster + Paper

Multi-wavelength SimultaneouS High throughput Imager and polarimeter (MuSaSHI): development and its performance

Yumiko Oasa, Kazutoshi Ushioda, Yoshiki Shibata, Genta Seino, Masaru Kino, Hiroshi Akitaya

Proceedings Volume 11447, 114475Z (2020) https://doi.org/10.1117/12.2560903

KEYWORDS: Polarimetry, Imaging systems, Telescopes, Charge-coupled devices, Photometry, Planets, Stars

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Proceedings Article | 6 August 2014 Paper

HONIR: an optical and near-infrared simultaneous imager, spectrograph, and polarimeter for the 1.5-m Kanata telescope

Hiroshi Akitaya, Yuki Moritani, Takahiro Ui, Takeshi Urano, Yuma Ohashi, Koji Kawabata, Asami Nakashima, Mahito Sasada, Kiyoshi Sakimoto, Tatsuya Harao, Hisashi Miyamoto, Rieko Matsui, Ryosuke Itoh, Katsutoshi Takaki, Issei Ueno, Takashi Ohsugi, Hidehiko Nakaya, Takuya Yamashita, Michitoshi Yoshida

Proceedings Volume 9147, 91474O (2014) https://doi.org/10.1117/12.2054577

KEYWORDS: Polarization, Polarimetry, Imaging spectroscopy, Telescopes, Sensors, Prisms, Spectroscopy, Stars, Spectroscopes, CCD image sensors

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Proceedings Article | 28 July 2014 Paper

Development of a new readout system for the near-infrared detector of HONIR

Takahiro Ui, Shigeyuki Sako, Takuya Yamashita, Hiroshi Akitaya, Koji Kawabata, Hidehiko Nakaya, Yuki Moritani, Ryosuke Itoh, Katsutoshi Takaki, Takeshi Urano, Issei Ueno, Takashi Ohsugi, Michitoshi Yoshida, Hikaru Nakao, Yasuhito Hashiba

Proceedings Volume 9147, 91476C (2014) https://doi.org/10.1117/12.2055388

KEYWORDS: Sensors, Linear filtering, Multiplexers, Electrons, Mirrors, Analog electronics, Clocks, Detector development, Imaging spectroscopy, Astronomy

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Proceedings Article | 24 September 2012 Paper

An optical and near-infrared multipurpose instrument HONIR

Kiyoshi Sakimoto, Hiroshi Akitaya, Takuya Yamashita, Koji Kawabata, Hidehiko Nakaya, Hisashi Miyamoto, Tatsuya Harao, Ryosuke Itoh, Risako Matsui, Yuki Moritani, Asami Nakashima, Takashi Ohsugi, Mahito Sasada, Katsutoshi Takaki, Issei Ueno, Takahiro Ui, Takeshi Urano, Michitoshi Yoshida

Proceedings Volume 8446, 844673 (2012) https://doi.org/10.1117/12.926425

KEYWORDS: Sensors, Telescopes, Polarimetry, Imaging spectroscopy, Infrared imaging, Cameras, Optical benches, Spectroscopes, Optical components, Beam splitters

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Proceedings Article | 13 September 2012 Paper

Test production of a mirror segment for the Thirty Meter Telescope

Tetsuji Oota, Hirohiko Shinonaga, Kotaro Akutsu, Yuichiro Hashimoto, Itaru Otsuka, Yasushi Iwasaki, Masanori Iye, Takuya Yamashita, Hiroshi Akitaya, Ryuji Suzuki

Proceedings Volume 8450, 84502B (2012) https://doi.org/10.1117/12.926945

KEYWORDS: Mirrors, Polishing, Surface finishing, Telescopes, Monochromatic aberrations, Segmented mirrors, Interferometers, Astronomy, Off axis mirrors, Thirty Meter Telescope

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Proceedings Article | 23 July 2010 Paper

Studies on evaluating and removing subsurface damage on the ground surface of CLEARCERAM-Z HS

Hiroshi Akitaya, Takuya Yamashita, Norio Ohshima, Masanori Iye, Toshinori Maihara, Hitoshi Tokoro, Keisuke Takahashi

Proceedings Volume 7739, 77392E (2010) https://doi.org/10.1117/12.856645

KEYWORDS: Surface finishing, Magnetorheological finishing, Etching, Polishing, Segmented mirrors, HF etching, Abrasives, Mirrors, Lens grinding equipment, Thirty Meter Telescope

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Proceedings Article | 23 July 2008 Paper

Application of zero-expansion pore-free ceramics to a mirror of an astronomical telescope

Hiroshi Akitaya, Masanori Iye, Kiichi Okita, Motoyasu Sato, Hiroyuki Matsuo, Takeshi Itazu, Takeshi Uno, Masao Yamaguchi, Zen-ei Tanaka, Takuya Yamashita, Koji Kawabata, Makoto Uemura, Mikio Kurita

Proceedings Volume 7018, 70183H (2008) https://doi.org/10.1117/12.788884

KEYWORDS: Mirrors, Ceramics, Telescopes, Glasses, Astronomical telescopes, Aspheric lenses, Polishing, Manufacturing, Surface finishing, Lens grinding equipment

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Proceedings Article | 14 February 2003 Paper

Development of the high-resolution spectropolarimeter: LIPS

Yuji Ikeda, Hiroshi Akitaya, Kentaro Matsuda, Koji Kawabata, Munezo Seki, Ryuko Hirata, Akira Okazaki

Proceedings Volume 4843, (2003) https://doi.org/10.1117/12.458833

KEYWORDS: Laser induced plasma spectroscopy, Polarization, Polarimetry, Telescopes, Charge-coupled devices, Wave plates, Astronomy, Spectral resolution, Stars, Adhesives

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Showing 5 of 13 publications

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