Dr. Masaoki Hagino Profile

Dr. Masaoki Hagino

at National Astronomical Observatory of Japan

SPIE Involvement:

Author

Publications (5)

Proceedings Article | 18 July 2024 Poster + Paper

Polarimetric observations of the Sun in He I 1083 nm line with LiNbO3 Fabry-Perot filtergraph and rotating waveplate

Yoshinori Suematsu, Tomoya Iju, Kazuya Shinoda, Masaoki Hagino, Satoru Ueno, Shin'ichi Nagata, Kiyoshi Ichimoto

Proceedings Volume 13096, 130968D (2024) https://doi.org/10.1117/12.3018909

KEYWORDS: Fabry Perot interferometers, Polarization, Wave plates, Tunable filters, Optical filters, Infrared cameras, Shadows, Optical transmission, Observatories, Modulation

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Proceedings Article | 30 September 2022 Presentation + Paper

LiNbO3 Fabry-Perot etalons for solar near-infrared narrow-passband tunable filtergraph

Yoshinori Suematsu, Tomoya Iju, Kazuya Shinoda, Masaki Hagino, Satoru Ueno

Proceedings Volume 12235, 1223507 (2022) https://doi.org/10.1117/12.2632133

KEYWORDS: Fabry–Perot interferometers, Tunable filters, Reflectivity, Optical filters, Optical fabrication, Solar telescopes, Polarizers, Observatories, Wafer-level optics, Image filtering

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Proceedings Article | 13 December 2020 Poster + Paper

Development of new tunable filter for solar observation in Hida observatory

Kenichi Otsuji, Gouichi Kimura, Yoshi-kazu Nakatani, Naoki Kaneda, Takako Ishii, Masaoki Hagino, Kiyoshi Ichimoto

Proceedings Volume 11447, 11447A5 (2020) https://doi.org/10.1117/12.2561199

KEYWORDS: Tunable filters, Observatories, Magnetism, Motion measurement, Wave plates, Telescopes, Solar processes, Doppler effect, Imaging systems, 3D image processing

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