Dr. Takuma Kokusho Profile

Dr. Takuma Kokusho

at Nagoya University

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 18 July 2024 Poster + Paper

The South Africa Near-Infrared Doppler (SAND) instrument: design and fabrications

Aoi Takahashi, Takayuki Kotani, Masayuki Kuzuhara, Takeru Nakajima, Riku Urago, Kou Hosokawa, Shotaro Tada, Motohide Tamura, Jun Nishikawa, Akitoshi Ueda, Takuya Takarada, Teruyuki Hirano, Takuma Kokusho, Eiko Kozaki, Takahiro Nagayama, Takahiro Sumi, Daisuke Suzuki, Hibiki Yama, Tomoyasu Yamamuro

Proceedings Volume 13096, 1309669 (2024) https://doi.org/10.1117/12.3018194

KEYWORDS: Stars, Telescopes, Spectrographs, Sand, Mirrors, Planets, Spectral resolution, Signal to noise ratio, Optical alignment, Equipment

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Proceedings Article | 18 July 2024 Poster + Paper

Development of a new near-infrared spectrometer for the IRSF telescope

Takuma Kokusho, Yuki Fujii, Kota Ogihara, Takahiro Nagayama, Takayoshi Kusune, Hidehiro Kaneda, Hidehiko Nakaya

Proceedings Volume 13096, 130967J (2024) https://doi.org/10.1117/12.3016577

KEYWORDS: Spectroscopy, Telescopes, Sensors, Indium gallium arsenide, Stars, Spectral resolution, Equipment, Infrared telescopes, Prisms, Observatories

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Proceedings Article | 13 December 2020 Poster + Paper

SPICA Mid-infrared Instrument (SMI): The latest design and specifications

Takehiko Wada, Hidehiro Kaneda, Takuma Kokusho, Toyoaki Suzuki, Kumiko Morihana, Takurou Tsuchikawa, Yuki Kuroda, Daichi Ishikawa, Shinki Oyabu, Naoki Isobe, Daisuke Ishihara, Hideo Matsuhara, Koichi Nagase, Takao Nakagawa, Takafumi Ootsubo, Mitsuyoshi Yamagishi, Hiroshi Maeshima, Shunsuke Onishi, Kosei Matsumoto, Satoshi Itoh, Mizuho Uchiyama, Ryan Lau, Hiromichi Ebihara, Hanae Inami, Koji Kawabata, Yasumasa Kasaba, Takeshi Sakanoi, Yoshifusa Ita, Masayuki Akiyama, Itsuki Sakon, Takafumi Kamizuka, Takashi Miyata, Kohji Tsumura, Masato Naruse, Youichi Ohyama, Shiang-Yu Wang, Hiroshi Shibai

Proceedings Volume 11443, 114436G (2020) https://doi.org/10.1117/12.2561157

KEYWORDS: Spectroscopy, Mid-IR, Cameras, Sensors, Galactic astronomy, James Webb Space Telescope, Spectroscopes, Content addressable memory, Prisms, Imaging systems

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Transmittance measurement of low/high-resistivity of CdZnTe at cryogenic temperature for material selection of the immersion grating of SPICA SMI

Hiroshi Maeshima, Kosei Matsumoto, Yasuhiro Hirahara, Takao Nakagawa, Takehiko Wada, Koichi Nagase, Shinki Oyabu, Toyoaki Suzuki, Takuma Kokusho, Hidehiro Kaneda, Ryota Ito, Daichi Ishikawa

Proceedings Volume 11451, 114515X (2020) https://doi.org/10.1117/12.2562042

KEYWORDS: Transmittance, Cryogenics, Absorbance, Temperature metrology, Diffraction gratings, Mid-IR, Liquids, Helium, FT-IR spectroscopy, Optical testing

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Proceedings Article | 12 July 2018 Paper

SPICA mid-infrared instrument (SMI): conceptual design and feasibility studies

Hidehiro Kaneda, Daisuke Ishihara, Shinki Oyabu, Misato Fukagawa, Takuma Kokusho, Toyoaki Suzuki, Takuya Furuta, Takurou Tsuchikawa, Takehiko Wada, Naoki Isobe, Mitsunobu Kawada, Jungmi Kwon, Hideo Matsuhara, Koichi Nagase, Takao Nakagawa, Takafumi Ootsubo, Mitsuyoshi Yamagishi, Itsuki Sakon, Kohji Tsumura, Hiroshi Shibai

Proceedings Volume 10698, 106980C (2018) https://doi.org/10.1117/12.2313093

KEYWORDS: Sensors, Spectroscopy, Mirrors, Galactic astronomy, Annealing, Mid-IR, Space telescopes, Telescopes, Infrared telescopes, Spectroscopes

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Proceedings Article | 23 July 2014 Paper

Evaluation of InGaAs 640x512 detector array manufactured by Chunghwa Leading Photonics Tech

Takahiro Nagayama, Nami Takeuchi, Takuma Kokusho, Asa Yamanaka, Miho Nishiyama, Hidehiro Kaneda

Proceedings Volume 9154, 91541O (2014) https://doi.org/10.1117/12.2055084

KEYWORDS: Sensors, Staring arrays, Near infrared, Multiplexers, Astronomy, Temperature metrology, Photonics, Indium gallium arsenide, Manufacturing, Cadmium sulfide

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Proceedings Article | 30 September 2013 Paper

Manufacturing and optical testing of 800 mm lightweight all C/SiC optics

Hidehiro Kaneda, Masataka Naitoh, Takao Nakagawa, Tadashi Imai, Haruyoshi Katayama, Masahiro Suganuma, Yoshio Tange, Ryota Sato, Keigo Enya, Masaki Kotani, Kenta Maruyama, Takashi Onaka, Takuma Kokusho

Proceedings Volume 8837, 88370I (2013) https://doi.org/10.1117/12.2025259

KEYWORDS: Mirrors, Telescopes, Space telescopes, Silicon carbide, Cryogenics, Optical testing, Optics manufacturing, Interferometers, Silicon, Optical benches

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Proceedings Article | 24 September 2012 Paper

Design and status of an optical and near-infrared spectrometer for the IRSF 1.4m Telescope

Takahiro Nagayama, Mikio Kurita, Masaru Kino, Daisuke Mori, Takuma Kokusho

Proceedings Volume 8446, 844671 (2012) https://doi.org/10.1117/12.926029

KEYWORDS: Near infrared, Spectroscopy, Telescopes, Prisms, Channel projecting optics, Sapphire, Mirrors, Sensors, Spectral resolution, Spherical lenses

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Proceedings Article | 21 September 2012 Paper

Experimental and numerical study of stitching interferometry for the optical testing of the SPICA Telescope

Hidehiro Kaneda, Masataka Naitoh, Tadashi Imai, Haruyoshi Katayama, Takashi Onaka, Takao Nakagawa, Mitsunobu Kawada, Mitsuyoshi Yamagishi, Takuma Kokusho

Proceedings Volume 8442, 84423T (2012) https://doi.org/10.1117/12.926879

KEYWORDS: Telescopes, Space telescopes, Mirrors, Optical testing, James Webb Space Telescope, Infrared telescopes, Stitching interferometry, Cryogenics, Numerical simulations, Interferometers

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Showing 5 of 9 publications

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