Mr. Toshihiro Tsuzuki Profile

Toshihiro Tsuzuki

Research Engineer at National Astronomical Observatory of Japan

SPIE Involvement:

Author

Area of Expertise:

Optical design , Optical analysis , Optical evaluation , optomechanical systems

Profile Summary

Toshihiro Tsuzuki, an optical engineer at the Advanced Technology Center of the National Astronomical Observatory of Japan (NAOJ), holds B.S. and M.S. degrees in Physics from Osaka University. With over three years of experience in optical design and consumer lens evaluation at Olympus, he is deeply involved in various astronomical instrument development projects at NAOJ. His contributions encompass a range of instruments, including TMT/IRIS, TMT/WFOS, TAO/SWIMS(IFU), Seimei/TriCCS(IFU), KAGRA, Nobeyama45m, Greenland Telescope, Antarctica Telescope, SOLAR-C(EUVST), JASMINE, SUNRISE III, and sounding rockets like CLASP1/CLASP2. In 2018, Toshihiro earned the "Optical Design Award" from the Optical Society of Japan's Optical Design Group, a testament to his innovation in optical engineering. His current research focus lies in optical design, analysis, and the evaluation of optomechanical systems.

Publications (36)

Proceedings Article | 28 August 2024 Presentation

Presentation

SUNRISE III balloon-borne solar telescope and its NIR spectropolarimeter SCIP

Yukio Katsukawa, Hirohisa Hara, Sami Solanki, Andreas Korpi-Lagg, Pietro Bernasconi, Jose Carlos del Toro Iniesta, Thomas Berkefeld, Masahito Kubo, Takayoshi Oba, Yusuke Kawabata, Toshifumi Shimizu, Fumihiro Uraguchi, Toshihiro Tsuzuki, María Balaguer Jiménez, David Orozco Suárez, Javier Piqueras Carreño, Achim Gandorfer, Alex Feller

Proceedings Volume 13094, 130940Z (2024) https://doi.org/10.1117/12.3023299

KEYWORDS: Spectropolarimetry, Solar telescopes, Near infrared, Telescopes, Magnetism, Infrared telescopes, Infrared radiation, Balloons, Ultraviolet radiation, Spatial resolution

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Proceedings Article | 26 August 2024 Poster + Paper

Poster + Paper

Development of an efficient three-channel IFU for high-speed time-domain spectroscopy onboard TriCCS at the Seimei telescope

Toshihiro Tsuzuki, Kazuya Matsubayashi, Mamoru Doi, Bungo Ikenoue, Naoki Kohara, Shinobu Ozaki, Kentaro Motohara, Shigeyuki Sako, Kouji Ohta, Keiichi Maeda

Proceedings Volume 13100, 131005E (2024) https://doi.org/10.1117/12.3018727

KEYWORDS: Telescopes, Coating, Mirrors, Imaging systems, Optical surfaces, Optical alignment, Optical design, Spectrographs, Optical instrument design

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Proceedings Article | 26 August 2024 Poster + Paper

Poster + Paper

Extremely large optical space telescope comprising formation-flying ultrasmall satellites: proof-of-concept experiments of a diffractive optical system on the ground

Naoki Kohara, Toshihiro Tsuzuki, Yuichi Matsuda, Kazuhisa Mitsuda, Kazuma Yamaguchi, Hiromi Morishita, Yuichiro Ezoe, Atsushi Noda

Proceedings Volume 13100, 1310077 (2024) https://doi.org/10.1117/12.3018728

KEYWORDS: Point spread functions, Diffractive optical elements, Telescopes, Diffraction, Space telescopes, Transmittance, Satellites, Wavefronts

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Proceedings Article | 23 August 2024 Poster + Paper

Poster + Paper

Evaluation and verification plan for JASMINE telescope optics on the ground

Yoshinori Suematsu, Toshihiro Tsuzuki, Naoki Kohara, Naoki Isobe, Hirokazu Kataza, Shingo Kashima, Ryouhei Kano

Proceedings Volume 13092, 1309235 (2024) https://doi.org/10.1117/12.3016887

KEYWORDS: Telescopes, Mirrors, Optical alignment, Sensors, Optical testing, Wavefront errors, Optical fabrication, Distortion, Infrared cameras, Cameras

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Proceedings Article | 23 August 2024 Poster + Paper

Poster + Paper

Extremely large optical space telescope comprising formation-flying ultra-small satellites: science requirements and telescope concept

Yuichi Matsuda, Toshihiro Tsuzuki, Naoki Kohara, Kazuhisa Mitsuda, Atsushi Noda, Yuichiro Ezoe, Naoshi Murakami

Proceedings Volume 13092, 130926O (2024) https://doi.org/10.1117/12.3018148

KEYWORDS: Stars, Telescopes, Satellites, Diffractive optical elements, Spatial resolution, Space telescopes, Formation flying, Electromagnetism, James Webb Space Telescope, Spectral resolution

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Proceedings Article | 23 August 2024 Presentation + Paper

Presentation + Paper

Conceptual design of the satellite payload for the JASMINE mission

Hirokazu Kataza, Ryouhei Kano, Naoteru Gouda, Masayuki Hirabayashi, Naoki Isobe, Takafumi Kamizuka, Shingo Kashima, Hajime Kawahara, Daisuke Kawata, Naoki Kohara, Iona Kondo, Ichiro Mase, Kohei Miyakawa, Ryou Ohsawa, Masanobu Ozaki, Risa Shimizu, Yoshinori Suematsu, Shotaro Tada, Toshihiro Tsuzuki, Fumihiro Uraguchi, Fumihiko Usui, Shin Utsunomiya, Takehiko Wada, Yoshiyuki Yamada, Taihei Yano

Proceedings Volume 13092, 130920A (2024) https://doi.org/10.1117/12.3018609

KEYWORDS: Stars, Telescopes, Sensors, Point spread functions, Astrometry, Error analysis, Distortion, Satellites, Design, Exoplanets

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Proceedings Article | 23 August 2024 Poster + Paper

Poster + Paper

Structural, thermal, and optical stability of the JASMINE telescope system

Naoki Isobe, Shingo Kashima, Yoshinori Suematsu, Naoteru Gouda, Ryohei Kano, Hirokazu Kataza, Hajime Kawahara, Naoki Kohara, Iona Kondo, Ichiro Mase, Ryou Ohsawa, Toshihiro Tsuzuki, Fumihiko Usui, Shin Utsunomiya, Takehiko Wada, Yoshiyuki Yamada, Taihei Yano, Aoi Takahashi, Tomoya Hattori, Koichi Takeda, Yukina Arima

Proceedings Volume 13092, 1309236 (2024) https://doi.org/10.1117/12.3017299

KEYWORDS: Telescopes, Thermal deformation, Mirrors, Distortion, Astrometry, Thermal stability, Near infrared

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Proceedings Article | 21 August 2024 Poster + Paper

Poster + Paper

A modification of the optical design for the SOLAR-C EUVST instrument: design performance, sensitivity analysis, optical alignment, and optical error budget

Toshihiro Tsuzuki, Yoshinori Suematsu, Yukio Katsukawa, Hirohisa Hara, Fumihiro Uraguchi, Ryohko Ishikawa, Toshifumi Shimizu, Shinsuke Imada, Tomoko Kawate

Proceedings Volume 13093, 130933Q (2024) https://doi.org/10.1117/12.3018615

KEYWORDS: Optical gratings, Sensors, Cameras, Spatial resolution, Error analysis, Optical alignment, Spectral resolution, Optical surfaces, CMOS sensors, Optical design, EUV optics, Space telescopes, Spectrographs, Tolerancing

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

IFU for wide field optical spectrograph (WFOS) on TMT

Shinobu Ozaki, Yoko Tanaka, Toshihiro Tsuzuki, Bungo Ikenoue, Takashi Hattori, Tsuyoshi Ishigaki, Rin Sasaki, Charles Steidel, Reston Nash, Jason Fucik, Eric Peng, George Jacoby, Alastair Heptonstall

Proceedings Volume 13096, 130965T (2024) https://doi.org/10.1117/12.3017700

KEYWORDS: Spectrographs, Spectral resolution, Zemax, Thirty Meter Telescope, Hyperspectral imaging, Hyperspectral systems

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SPIE Journal Paper | 4 March 2024 Open Access

Open Access

Development of a near-infrared wide-field integral field unit by ultra-precision diamond cutting

Kosuke Kushibiki, Shinobu Ozaki, Masahiro Takeda, Takuya Hosobata, Yutaka Yamagata, Shin-ya Morita, Toshihiro Tsuzuki, Keiichi Nakagawa, Takao Saiki, Yutaka Ohtake, Kenji Mitsui, Hirofumi Okita, Yutaro Kitagawa, Yukihiro Kono, Kentaro Motohara, Hidenori Takahashi, Masahiro Konishi, Natsuko Kato, Shuhei Koyama, Nuo Chen

JATIS, Vol. 10, Issue 01, 015004, (March 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.1.015004

KEYWORDS: Mirrors, Telescopes, Image quality, Mirror surfaces, Vignetting, Surface roughness, Engineering, Stars, Optical components, Off axis mirrors

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Diamond machining of two-in-one optical element including slice mirror array for near-infrared integral-field spectrograph

Masahiro Takeda, Kousuke Kushibiki, Takuya Hosobata, Yutaka Yamagata, Shinya Morita, Takao Saiki, Keiichi Nakagawa, Yutaka Ohtake, Kentaro Motohara, Shinobu Ozaki, Toshihiro Tsuzuki, Hidenori Takahashi, Masahiro Konishi

Proceedings Volume 12188, 121882X (2022) https://doi.org/10.1117/12.2625703

KEYWORDS: Mirrors, Optical components, Diamond machining, Surface roughness, X-rays, X-ray computed tomography, Spectrographs, Aluminum, Astronomy

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Development status of a near-infrared integral field unit SWIMS-IFU

Kosuke Kushibiki, Shinobu Ozaki, Masahiro Takeda, Takuya Hosobata, Yutaka Yamagata, Shinya Morita, Keiichi Nakagawa, Takao Saiki, Yutaka Ohtake, Toshihiro Tsuzuki, Kenji Mitsui, Hirofumi Okita, Kentaro Motohara, Hidenori Takahashi, Masahiro Konishi, Natsuko M. Kato, Shuhei Koyama, Nuo Chen, Shogo Homan, Akino Yasuda

Proceedings Volume 12188, 121882V (2022) https://doi.org/10.1117/12.2627205

KEYWORDS: Mirrors, Image quality, Vignetting, Optical fabrication, Stray light, Fabrication, Tolerancing, Surface roughness

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Sunrise chromospheric Infrared spectroPolarimeter (SCIP) for SUNRISE III: thermal-vacuum test of the SCIP optical unit

Y. Katsukawa, H. Hara, M. Kubo, Y. Kawabata, T. Oba, J. Piqueras Carreño, I. Pérez Grande, K. Shinoda, T. Tamura, F. Uraguchi, T. Tsuzuki, Y. Nodomi, T. Shimizu, A. C. López Jiménez, M. Balaguer Jiménez, D. Álvarez García

Proceedings Volume 12184, 121842B (2022) https://doi.org/10.1117/12.2629972

KEYWORDS: Cameras, Optical benches, Imaging systems, Spectrographs, Mirrors, Infrared spectroscopy, Infrared radiation, Spectral resolution

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Optical alignment and performance evaluation of the Sunrise Chromospheric Infrared spectroPolarimeter (SCIP) for SUNRISE III

Yusuke Kawabata, Yukio Katsukawa, Toshihiro Tsuzuki, Fumihiro Uraguchi, Kenji Mitsui, Kazuya Shinoda, Tomonori Tamura, Yoshifumi Nodomi, Hirohisa Hara, Masahito Kubo

Proceedings Volume 12184, 1218427 (2022) https://doi.org/10.1117/12.2627580

KEYWORDS: Modulation transfer functions, Optical alignment, Cameras, Mirrors, Optical components, Infrared spectroscopy, Infrared radiation, Monochromatic aberrations, Tunable lasers

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Sunrise Chromospheric Infrared spectroPolarimeter (SCIP) for SUNRISE III: opto-mechanical analysis and design

Fumihiro Uraguchi, Toshihiro Tsuzuki, Yukio Katsukawa, Hirohisa Hara, Satoru Iwamura, Masahito Kubo, Yoshifumi Nodomi, Yoshinori Suematsu, Yusuke Kawabata, Toshifumi Shimizu, Achim Gandorfer, Jose Carlos del Toro Iniesta

Proceedings Volume 11447, 11447AB (2020) https://doi.org/10.1117/12.2561812

KEYWORDS: Infrared spectroscopy, Infrared radiation, Wavefronts, Optical components, Infrared telescopes, Error analysis, Optical instrument design, Observatories, Telescopes, Motion analysis

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

SUNRISE Chromospheric Infrared spectroPolarimeter (SCIP) for SUNRISE III: Scan mirror mechanism

Takayoshi Oba, Toshifumi Shimizu, Yukio Katsukawa, Masahito Kubo, Fumihiro Uraguchi, Toshihiro Tsuzuki, Tomonori Tamura, Kazuya Shinoda, Kazuhide Kodeki, Kazuhiko Fukushima, Achim Gandorfer, Jose Carlos del Toro Iniesta

Proceedings Volume 11445, 114454F (2020) https://doi.org/10.1117/12.2562075

KEYWORDS: Mirrors, Infrared spectroscopy, Infrared radiation, Infrared imaging, Magnetism, Solar processes, Spatial resolution, Electromagnetism, Actuators, Capacitance

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

A sensitivity analysis of the updated optical design for EUVST on the Solar-C mission

Tomoko Kawate, Toshihiro Tsuzuki, Toshifumi Shimizu, Shinsuke Imada, Yukio Katsukawa, Hirohisa Hara, Yoshinori Suematsu, Kiyoshi Ichimoto, Tomoya Hattori, Shota Narasaki, Harry Warren, Luca Teriaca, Clarence Korendyke, Charles Brown, Frederic Auchere

Proceedings Volume 11444, 114443J (2020) https://doi.org/10.1117/12.2560573

KEYWORDS: Optical design, Error analysis, Spatial resolution, Sensors, Point spread functions, Spectral resolution, Optical components, Extreme ultraviolet, Spectroscopy, Ultraviolet telescopes

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Sunrise Chromospheric Infrared SpectroPolarimeter (SCIP) for sunrise III: system design and capability

Y. Katsukawa, J. C. del Toro Iniesta, S. Solanki, M. Kubo, H. Hara, T. Shimizu, T. Oba, Y. Kawabata, T. Tsuzuki, F. Uraguchi, Y. Nodomi, K. Shinoda, T. Tamura, Y. Suematsu, R. Ishikawa, R. Kano, T. Matsumoto, K. Ichimoto, S. Nagata, C. Quintero Noda, T. Anan, D. Orozco Suárez, M. Balaguer Jiménez, A. López Jiménez, J. P. Cobos Carrascosa, A. Feller, T. Riethmueller, A. Gandorfer, A. Lagg

Proceedings Volume 11447, 114470Y (2020) https://doi.org/10.1117/12.2561223

KEYWORDS: Infrared spectroscopy, Infrared radiation, Signal detection, Observatories, Solar processes, Spectral resolution, Polarimetry, Polarization, Optical telescopes, Near ultraviolet

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Sunrise Chromospheric Infrared spectroPolarimeter (SCIP) for SUNRISE III: optical design and performance

Toshihiro Tsuzuki, Yukio Katsukawa, Fumihiro Uraguchi, Hirohisa Hara, Masahito Kubo, Yoshifumi Nodomi, Yoshinori Suematsu, Yusuke Kawabata, Toshifumi Shimizu, Achim Gandorfer, Alex Feller, Bianca Grauf, Sami Solanki, Jose Carlos del Toro Iniesta

Proceedings Volume 11447, 11447AJ (2020) https://doi.org/10.1117/12.2562245

KEYWORDS: Infrared spectroscopy, Infrared radiation, Optical design, Diffraction gratings, Infrared telescopes, Spectral resolution, Diffraction, Wavefronts, Error analysis, Optical instrument design

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Proceedings Article | 13 December 2020 Poster + Paper

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 | 13 December 2020 Poster + Paper

Poster + Paper

Performances of an integral field unit for FOCAS on the Subaru telescope

Shinobu Ozaki, Takashi Hattori, Kentaro Aoki, Chien-Hsiu Lee, Mitsuhiro Fukushima, Hikaru Iwashita, Kenji Mitsui, Yoko Tanaka, Toshihiro Tsuzuki, Norio Okada, Yoshiyuki Obuchi, Satoshi Miyazaki, Takuya Yamashita

Proceedings Volume 11447, 114475T (2020) https://doi.org/10.1117/12.2560602

KEYWORDS: Telescopes, Spectrographs, Galactic astronomy, Optical imaging, Cameras, Image quality, Absorption, Mirrors, Coating

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Fabrication of mirror arrays with an ultra-precision cutting technique for a near-infrared integral field unit SWIMS-IFU

Kosuke Kushibiki, Takuya Hosobata, Masahiro Takeda, Yutaka Yamagata, Shin-ya Morita, Kentaro Motohara, Shinobu Ozaki, Toshihiro Tsuzuki, Hidenori Takahashi, Yukihiro Kono, Masahiro Konishi, Natsuko Kato, Yasunori Terao, Hiroki Nakamura

Proceedings Volume 11451, 114512Y (2020) https://doi.org/10.1117/12.2560431

KEYWORDS: Mirrors, Fabrication, Infrared telescopes, Telescopes, Aluminum, Surface roughness, Infrared imaging, Infrared spectroscopy, Infrared radiation, Astronomical imaging

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

The Solar-C (EUVST) mission: the latest status

Toshifumi Shimizu, Shinsuke Imada, Tomoko Kawate, Yoshinori Suematsu, Hirohisa Hara, Toshihiro Tsuzuki, Yukio Katsukawa, Masahito Kubo, Ryoko Ishikawa, Tetsuya Watanabe, Shin Toriumi, Kiyoshi Ichimoto, Shin'ichi Nagata, Takahiro Hasegawa, Takaaki Yokoyama, Kyoko Watanabe, Katsuhiko Tsuno, Clarence Korendyke, Harry Warren, Bart De Pontieu, Paul Boerner, Sami Solanki, Luca Teriaca, Udo Schuehle, Sarah Matthews, David Long, William Thomas, Barry Hancock, Hamish Reid, Andrzej Fludra, Frederic Auchère, Vincenzo Andretta, Giampiero Naletto, Luca Poletto, Louise Harra

Proceedings Volume 11444, 114440N (2020) https://doi.org/10.1117/12.2560887

KEYWORDS: Extreme ultraviolet, Spectroscopy, Telescopes, Solar processes, Spectrographs, Imaging systems, Coronagraphy, Spatial resolution, Cameras, Mirrors

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Proceedings Article | 9 September 2019 Paper

Paper

Concept study of Solar-C_EUVST optical design

Tomoko Kawate, Toshifumi Shimizu, Shinsuke Imada, Toshihiro Tsuzuki, Yukio Katsukawa, Hirohisa Hara, Yoshinori Suematsu, Kiyoshi Ichimoto, Harry Warren, Luca Teriaca, Clarence Korendyke, Charles Brown

Proceedings Volume 11118, 111181N (2019) https://doi.org/10.1117/12.2527957

KEYWORDS: Mirrors, Sensors, Solar processes, Optical design, Extreme ultraviolet, Tolerancing, Spectral resolution, Geometrical optics, Telescopes, Vacuum ultraviolet

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SPIE Journal Paper | 6 June 2019

Design study of an image slicer module for a multiobject spectrograph

Shinobu Ozaki, Toshihiro Tsuzuki, Yoshiyuki Obuchi, Bungo Ikenoue, Satoshi Miyazaki, Jason Fucik, Kevin Bundy, Maureen Savage

JATIS, Vol. 5, Issue 03, 035001, (June 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.3.035001

KEYWORDS: Mirrors, Telescopes, Spectrographs, Astronomical imaging, Reflectivity, Tolerancing, Thirty Meter Telescope, Manufacturing, Optical design, Image quality

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Proceedings Article | 11 July 2018 Paper

Paper

Image slicer module for Wide Field Optical Spectrograph (WFOS)

Shinobu Ozaki, Satoshi Miyazaki, Toshihiro Tsuzuki, Jason Fucik

Proceedings Volume 10702, 107028M (2018) https://doi.org/10.1117/12.2309324

KEYWORDS: Spectrographs, Thirty Meter Telescope, Astronomy, Optical design

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Proceedings Article | 10 July 2018 Paper

Paper

Design of an integral field unit for SWIMS and its milling process fabrication with an ultra-high precision machine tool

Yukihiro Kono, Yutaka Yamagata, Shin-ya Morita, Kentaro Motohara, Shinobu Ozaki, Toshihiro Tsuzuki, Hidenori Takahashi, Yutaro Kitagawa, Masahiro Konishi, Natsuko Kato, Yasunori Terao, Hirofumi Ohashi, Kosuke Kushibiki

Proceedings Volume 10706, 107063F (2018) https://doi.org/10.1117/12.2312351

KEYWORDS: Mirrors, Tolerancing, Vignetting, Aluminum, Surface finishing, Infrared telescopes, Surface roughness, Off axis mirrors, Diamond

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Proceedings Article | 9 July 2018 Presentation

Presentation

WFOS instrument trade study: slicer vs. fiber instrument concept designs and results (Conference Presentation)

Kevin Bundy, Maureen Savage, Renate Kupke, Nicholas MacDonald, Kyle Westfall, Matthew Radovan, Zheng Cai, Brian Digiorgio, Richard Dekany, Devika Divakar, Jason Fucik, Hangxin Ji, Satoshi Miyazaki, Shinobu Ozaki, Andrew Phillips, Namrata Roy, Roger Smith, Arun Surya, S. Sriram, Sivarani Thirupathi, Toshihiro Tsuzuki

Proceedings Volume 10702, 1070220 (2018) https://doi.org/10.1117/12.2312283

KEYWORDS: Spectrographs, Thirty Meter Telescope, Multiplexing, Robotic systems, Spectroscopy, Astronomical imaging, Robotics, Fiber couplers, Telescopes

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Proceedings Article | 6 July 2018 Paper

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 | 9 August 2016 Paper

Paper

Polishing test of a poly-crystal calcium fluoride lens: toward the development of TMT WFOS

Shinobu Ozaki, Satoshi Miyazaki, Toshihiro Tsuzuki, Yoko Tanaka

Proceedings Volume 9908, 99089N (2016) https://doi.org/10.1117/12.2232226

KEYWORDS: Thirty Meter Telescope, Polishing, Cameras, Calcium, Crystals, Image quality, Astronomy, Optical spheres, Photovoltaics, Zemax

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Proceedings Article | 9 August 2016 Paper

Paper

The Infrared Imaging Spectrograph (IRIS) for TMT: the ADC optical design

Andrew Phillips, Ryuji Suzuki, James Larkin, Anna Moore, Yutaka Hayano, Toshihiro Tsuzuki, Shelley Wright

Proceedings Volume 9908, 9908A1 (2016) https://doi.org/10.1117/12.2232952

KEYWORDS: IRIS Consortium, Imaging systems, Atmospheric optics, Infrared Imaging Spectrograph, Optical design, Distortion, Glasses, Astronomy, Atmospheric optics, Prisms, Data modeling

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Proceedings Article | 4 August 2016 Paper

Paper

The Infrared Imaging Spectrograph (IRIS) for TMT: optical design of IRIS imager with "co-axis double TMA"

Toshihiro Tsuzuki, Ryuji Suzuki, Hiroki Harakawa, Bungo Ikenoue, James Larkin, Anna Moore, Yoshiyuki Obuchi, Andrew Phillips, Sakae Saito, Fumihiro Uraguchi, James Wincentsen, Shelley Wright, Yutaka Hayano

Proceedings Volume 9908, 9908AE (2016) https://doi.org/10.1117/12.2232491

KEYWORDS: Optical design, IRIS Consortium, Imaging systems, Telescopes, Mirrors, Cameras, Collimators, Wavefront aberrations, Optical components, Sensors

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SPIE Journal Paper | 24 February 2015

Design of wide-field Nasmyth optical system for a submillimeter camera

Toshihiro Tsuzuki, Tom Nitta, Hiroaki Imada, Masumichi Seta, Naomasa Nakai, Shigeyuki Sekiguchi, Yutaro Sekimoto

JATIS, Vol. 1, Issue 02, 025002, (February 2015) https://doi.org/10.1117/12.10.1117/1.JATIS.1.2.025002

KEYWORDS: Mirrors, Telescopes, Cameras, Optical design, Galactic astronomy, Sensors, Optical instrument design, Imaging systems, Cryogenics, Astronomy

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Proceedings Article | 28 July 2014 Paper

Paper

Development of a slicer integral field unit for the existing optical spectrograph FOCAS: progress

Shinobu Ozaki, Yoko Tanaka, Takashi Hattori, Kenji Mitsui, Mitsuhiro Fukushima, Norio Okada, Yoshiyuki Obuchi, Toshihiro Tsuzuki, Satoshi Miyazaki, Takuya Yamashita

Proceedings Volume 9151, 915149 (2014) https://doi.org/10.1117/12.2054838

KEYWORDS: Mirrors, Telescopes, Spectrographs, Zemax, Prototyping, Spherical lenses, Vignetting, Image quality, Sensors, Cameras

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Proceedings Article | 23 July 2014 Paper

Paper

Developments of wide field submillimeter optics and lens antenna-coupled MKID cameras

Y. Sekimoto, T. Nitta, K. Karatsu, M. Sekine, S. Sekiguchi, T. Okada, S. Shu, T. Noguchi, M. Naruse, K. Mitsui, N. Okada, T. Tsuzuki, A. Dominjon, H. Matsuo

Proceedings Volume 9153, 91532P (2014) https://doi.org/10.1117/12.2055666

KEYWORDS: Cameras, Silicon, Sensors, Resonators, Microwave radiation, Antennas, Epoxies, Optical cryogenics, Dielectrics, Aluminum

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Proceedings Article | 23 July 2014 Paper

Paper

Design of wide-field Nasmyth optics for a submillimeter camera

Toshihiro Tsuzuki, Tom Nitta, Hiroaki Imada, Masumichi Seta, Naomasa Nakai, Sigeyuki Sekiguchi, Yutaro Sekimoto

Proceedings Volume 9153, 91532U (2014) https://doi.org/10.1117/12.2055694

KEYWORDS: Telescopes, Cameras, Mirrors, Cryogenics, Sensors, Optical design, Diffraction, Galactic astronomy, Space telescopes, Optical instrument design

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Showing 5 of 36 publications

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