Mr. Koki Yokoyama Profile

Koki Yokoyama

at Osaka Metropolitan Univ

SPIE Involvement:

Author

Publications (3)

Proceedings Article | 13 December 2020 Poster + Paper

Optical design of the 1.85-m mm-submm telescope in 210–375 GHz band

Yasumasa Yamasaki, Sho Masui, Masanari Okawa, Koki Yokoyama, Taisei Minami, Shota Ueda, Yutaka Hasegawa, Atsushi Nishimura, Toshikazu Onishi, Hideo Ogawa, Nozomi Okada, Kimihiro Kimura, Alvaro Gonzalez, Takafumi Kojima, Keiko Kaneko, Ryo Sakai

Proceedings Volume 11453, 114534H (2020) https://doi.org/10.1117/12.2561955

KEYWORDS: Optical design, Telescopes, Receivers, Mirrors, Clouds, Reflectors, Antennas, Optical instrument design, Device simulation, Optical simulations

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Proceedings Article | 13 December 2020 Poster + Paper

Development of a wideband waveguide diplexer for simultaneous observation at 210-375 GHz

Sho Masui, Taisei Minami, Masanari Okawa, Yasumasa Yamasaki, Koki Yokoyama, Shota Ueda, Yutaka Hasegawa, Atsushi Nishimura, Toshikazu Onishi, Hideo Ogawa, Takafumi Kojima, Alvaro Gonzalez

Proceedings Volume 11453, 114534F (2020) https://doi.org/10.1117/12.2561355

KEYWORDS: Waveguides, Telescopes, Receivers, Observatories, Clouds, Astronomy, Oscillators, Waveguide modes

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Proceedings Article | 13 December 2020 Poster + Paper

Current status and future plan of Osaka Prefecture University 1.85-m mm-submm telescope project

Atsushi Nishimura, Kazuki Tokuda, Ryohei Harada, Yutaka Hasegawa, Shota Ueda, Sho Masui, Ryotaro Konishi, Yasumasa Yamasaki, Hiroshi Kondo, Koki Yokoyama, Takeru Matsumoto, Taisei Minami, Masanari Okawa, Shinji Fujita, Ayu Konishi, Yuka Nakao, Shimpei Nishimoto, Sana Kawashita, Sho Yoneyama, Tatsuyuki Takashima, Kenta Goto, Nozomi Okada, Kimihiro Kimura, Yasuhiro Abe, Kazuyuki Muraoka, Hiroyuki Maezawa, Toshikazu Onishi, Hideo Ogawa

Proceedings Volume 11445, 114457F (2020) https://doi.org/10.1117/12.2560955

KEYWORDS: Waveguides, Observatories, Galactic astronomy, Telescopes, Clouds, Spatial resolution, Molecules, Modulators, Circular polarizers, Transducers

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