Prof. Hiromu Nakagawa Profile

Prof. Hiromu Nakagawa

at Tohoku Univ

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 23 August 2024 Poster + Paper

Onboard scientific image data compression scheme of Martian Moons eXplorer (MMX)

Masanobu Ozaki, Naru Hirata, Hideaki Miyamoto, Yuta Shimizu, Hiromu Nakagawa, Risa Miyazaki, Kazunori Ogohara, Hiroyuki Kurokawa, Christophe Donny, Nathalie Pons, Nicolas Theret, Mickael Bruno, Sonia Fornasier, Frederic Merlin, Maria Antonella Barucci

Proceedings Volume 13092, 130927H (2024) https://doi.org/10.1117/12.3019523

KEYWORDS: Image compression, Image segmentation, Discrete wavelet transforms, Mars

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Proceedings Article | 23 August 2024 Presentation + Paper

Design and performance of MIRS infrared imaging spectrometer onboard MMX mission

P. Bernardi, J.-M. Reess, M. Castelnau, F. Chapron, N. Nguyen-Tuong, S. Gauffre, B. Quertier, J. Parisot, M. Bonafous, D. Zeganadin, A. Barucci, S. Fornasier, F. Merlin, C. Imbert, V. Piou, E. Sawyer, N. Theret, M. Le Du, T. Iwata, H. Nakagawa, T. Nakamura

Proceedings Volume 13092, 130922J (2024) https://doi.org/10.1117/12.3018121

KEYWORDS: Detector arrays, Equipment, Spectroscopy, Mirrors, Design, Calibration, Mars, Infrared spectroscopy, Signal to noise ratio, Scanners, Camera shutters

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Proceedings Article | 21 August 2024 Presentation + Paper

Overview of the LAPYUTA mission (Life-environmentology, Astronomy, and PlanetarY Ultraviolet Telescope Assembly)

Fuminori Tsuchiya, Go Murakami, Atsushi Yamazaki, Shingo Kameda, Tomoki Kimura, Ryoichi Koga, Kei Masunaga, Shotaro Sakai, Masahiro Ikoma, Akifumi Nakayama, Masami Ouchi, Masaomi Tanaka, Shin Toriumi, Masato Kagitani, Kazuo Yoshioka, Chihiro Tao, Hajime Kita, Hidenobu Yajima, Hideo Sagawa, Hiromu Nakagawa, Hitoshi Hamori, Jun Kimura, Keigo Enya, Kosuke Namekata, Manabu Yamada, Masaki Kuwabara, Naoki Terada, Naoya Ozaki, Norio Narita, Sae Aizawa, Seiko Takagi, Shinitiro Sakai, Shohei Aoki, Shoya Matsuda, Shuya Tan, Takahiro Sumi, Takanori Kodama, Takashi Moriya, Takatoshi Shibuya, Takehiko Satoh, Taro Kawano, Nozomu Tominaga, Toshifumi Shimizu, Yasumasa Kasaba, Yoichi Yatsu, Yoshiaki Ono, Yudai Suzuki, Yuichi Matsuda, Yuki Harada, Yuta Notsu

Proceedings Volume 13093, 130930I (2024) https://doi.org/10.1117/12.3017298

KEYWORDS: Ultraviolet radiation, Galactic astronomy, Spectrographs, Planets, Hydrogen, Mars, Imaging systems, Exoplanets, Jupiter, Venus

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Proceedings Article | 6 August 2021 Poster + Paper

MIRS: an imaging spectrometer for the MMX mission

A. Bour, J. M. Reess, P. Bernardi, M. A. Barucci, M. Castelnau, M. Le Du, T. Iwata, H. Nakagawa, T. Nakamura, A. Doressoundiram, S. Fornasier

Proceedings Volume 11830, 118300G (2021) https://doi.org/10.1117/12.2600187

KEYWORDS: Spectroscopy, Sensors, Infrared spectroscopy, Mars, Space operations, Scanners, Telescopes, Mirrors, Interfaces, Infrared imaging

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Development of the liquid nitrogen cooled hollow core waveguide fiber for the mid-infrared region

Yasuhiro Hirahara, Ryota Ito, Yuji Yokoyama, Yuji Matsuura, Takashi Katagiri, Hiromu Nakagawa, Yasumasa Kasaba, Atsushi Yamazaki

Proceedings Volume 11451, 114516C (2020) https://doi.org/10.1117/12.2561187

KEYWORDS: Liquids, Nitrogen, Waveguides, Mid-IR, Transmittance, Silver, Data modeling, Telescopes, Astronomy, Glasses

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Broadband mid-IR fiber optics for heterodyne spectroscopy in solar system exploration missions

Hiromu Nakagawa, Satoki Tsukada, Yasumasa Kasaba, Yasuhiro Hirahara, Yuji Matsuura, Takashi Katagiri, Isao Murata, Atsushi Yamazaki

Proceedings Volume 11451, 114516B (2020) https://doi.org/10.1117/12.2561939

KEYWORDS: Mid-IR, Solar system, Fiber optics, Infrared technology, Spectroscopes, Metals, Molecules, Life sciences, Atmospheric sciences, Spectroscopic atmospheric monitoring techniques

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Proceedings Article | 10 July 2018 Paper

High-contrast apodization baffle for instruments onboard solar system exploration missions

K. Enya, A. Yamazaki, H. Nakagawa, N. Terada, K. Seki, N. Fujishiro, A. Motoyoshi, O. Moriwaki

Proceedings Volume 10706, 107065I (2018) https://doi.org/10.1117/12.2312577

KEYWORDS: Apodization, Solar system, Mars, Aluminum, Manufacturing, Exoplanets, Remote sensing

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Proceedings Article | 6 July 2018 Paper

Development of PLANETS telescope and visible-infrared spectrometer for monitoring of planetary and exoplanetary atmospheres

Takeshi Sakanoi, Jeff Kuhn, Svetlana Berdyugina, Marcelo Emilio, Masato Kagitani, Yasuhiro Hirahara, Hiromu Nakagawa, Yasumasa Kasaba, Takahiro Obara, Shoichi Okano, Isabelle Scholl, Andrei Berdyugin, Vilppu Piirola

Proceedings Volume 10700, 107004J (2018) https://doi.org/10.1117/12.2312363

KEYWORDS: Telescopes, Planets, Mirrors, Space telescopes, Polarization, Spectroscopy, Information operations, Imaging systems, Polishing, Infrared telescopes

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Proceedings Article | 28 July 2014 Paper

Development of infrared Echelle spectrograph and mid-infrared heterodyne spectrometer on a small telescope at Haleakala, Hawaii for planetary observation

Takeshi Sakanoi, Yasumasa Kasaba, Masato Kagitani, Hiromu Nakagawa, Jeff Kuhn, Shoichi Okano

Proceedings Volume 9147, 91478D (2014) https://doi.org/10.1117/12.2055877

KEYWORDS: Telescopes, Spectrographs, Mirrors, Spectroscopy, Sensors, Infrared spectroscopy, Heterodyning, Infrared radiation, Mid-IR, Auroras

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Showing 5 of 9 publications

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