Dr. Takenori J. Okamoto Profile

Dr. Takenori J. Okamoto

at National Astronomical Observatory of Japan

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Author

Publications (3)

Proceedings Article | 13 December 2020 Poster + Paper

Optical design of the Chromospheric LAyer Spectro-Polarimeter (CLASP2)

Toshihiro Tsuzuki, Ryohko Ishikawa, Ryouhei Kano, Noriyuki Narukage, Donguk Song, Masaki Yoshida, Fumihiro Uraguchi, Takenori Okamoto, David McKenzie, Ken Kobayashi, Laurel Rachmeler, Frederic Auchere, Javier Trujillo Bueno

Proceedings Volume 11444, 114446W (2020) https://doi.org/10.1117/12.2562273

KEYWORDS: Optical design, Polarization, Magnetism, Rockets, Scattering, Zeeman effect, Off axis mirrors, Mirrors, Solar processes, Vacuum ultraviolet

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Proceedings Article | 6 July 2018 Paper

Optical alignment of the high-precision UV spectro-polarimeter (CLASP2)

Donguk Song, Ryohko Ishikawa, Ryouhei Kano, Masaki Yoshida, Toshihiro Tsuzuki, Fumihiro Uraguchi, Kazuya Shinoda, Hirohisa Hara, Takenori Okamoto, Frédéric Auchère, David McKenzie, Laurel Rachmeler, Javier Trujillo Bueno

Proceedings Volume 10699, 106992W (2018) https://doi.org/10.1117/12.2313056

KEYWORDS: Magnesium, Surface plasmons, Cameras, Mirrors, Lamps, Optical alignment, Off axis mirrors, Polarization, Image quality, Reflectivity, Absorption spectroscopy, Astronomical telescopes, UV optics, Rockets, Alignment procedures

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Proceedings Article | 6 July 2018 Paper

Wavefront error measurements and alignment of CLASP2 telescope with a dual-band pass cold mirror coated primary mirror

Masaki Yoshida, Donguk Song, Ryoko Ishikawa, Ryouhei Kano, Yukio Katsukawa, Yoshinori Suematsu, Noriyuki Narukage, Masahito Kubo, Kazuya Shinoda, Takenori Okamoto, David McKenzie, Laurel Rachmeler, Frédéric Auchère, Javier Trujillo Bueno

Proceedings Volume 10699, 1069930 (2018) https://doi.org/10.1117/12.2312463

KEYWORDS: Mirrors, Telescopes, Monochromatic aberrations, Coating, Space telescopes, Zernike polynomials, Interferometers, Visible radiation, Reflectivity, UV optical elements

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