Dr. Keisuke Isogai Profile

Dr. Keisuke Isogai

at Kyoto Univ.

SPIE Involvement:

Author

Publications (3)

Proceedings Article | 26 August 2024 Poster + Paper

Novel transmission gratings with large angular dispersion, high-efficiency, and wide spectral bandwidth

Noboru Ebizuka, Takayuki Okamoto, Yutaka Yamagata, Minoru Sasaki, Makio Nishimaki, Kazuya Yamamoto, Yukinobu Nishio, Masanao Abe, Yusuke Nakauchi, Kazuto Saiki, Keisuke Isogai, Masaaki Otsuka, Ichi Tanaka, Takashi Hattori, Shinobu Ozaki, Wako Aoki

Proceedings Volume 13100, 131005O (2024) https://doi.org/10.1117/12.3018724

KEYWORDS: Diffraction gratings, Silicon, Optical gratings, Glasses, Diffraction, Telescopes, Spectroscopy, Spectrographs, Observatories, K band

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Proceedings Article | 13 December 2020 Poster + Paper

MuSCAT3: a 4-color simultaneous camera for the 2m Faulkes Telescope North

Norio Narita, Akihiko Fukui, Tomoyasu Yamamuro, Daniel Harbeck, Mark Bowman, Mark Elphick, Jon Nation, J.D. Armstrong, Jacqueline Han, Shunichi Abe, Masahiro Ikoma, Keisuke Isogai, Kiyoe Kawauchi, Seiya Kurita, Nobuhiko Kusakabe, Jerome de Leon, John Livingston, Mayuko Mori, Taku Nishiumi, Motohide Tamura, Noriharu Watanabe, Nikolaus Volgenau, Elisabeth Heinrich-Josties, Steve Foale, Matt Daily, Curtis McCully, Annie Kirby, Cary Smith, Brian Haworth, Patrick Conway, Lisa Storrie-Lombardi, Wayne Rosing, Joey Chatelain, Etienne Bachelet, Marshall Johnson, Markus Rabus

Proceedings Volume 11447, 114475K (2020) https://doi.org/10.1117/12.2559947

KEYWORDS: Telescopes, Cameras, Mirrors, Liquid crystal on silicon, Relays, Exoplanets, Lanthanum, Observatories, CCD cameras, Manufacturing

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Proceedings Article | 13 December 2020 Poster + Paper

On-sky examination of optical diffusers installed in MuSCAT

Taku Nishiumi, Norio Narita, Akihiko Fukui, Noriharu Watanabe, Kiyoe Kawauchi, Hideyuki Izumiura, Hiroyuki Maehara, Nobuhiko Kusakabe, Keisuke Isogai, Yuka Terada, John Livingston, Mayuko Mori

Proceedings Volume 11447, 114476K (2020) https://doi.org/10.1117/12.2561286

KEYWORDS: Diffusers, Point spread functions, Stars, Cameras, Exoplanets, Telescopes

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