Prof. Masayuki Akiyama Profile

Prof. Masayuki Akiyama

Professor at Tohoku Univ

SPIE Involvement:

Author

Publications (54)

Proceedings Article | 13 September 2024 Poster + Paper

Poster + Paper

Initial performance testing for the wavefront sensor image acquisition system of the ULTIMATE-Subaru ground-layer adaptive optics

Koki Terao, Yosuke Minowa, Yoshito Ono, Hiroshige Yoshida, Yoko Tanaka, Masayuki Akiyama, Celine D'Orgeville, Noelia Martinez Rey, Hajime Ogane

Proceedings Volume 13097, 1309743 (2024) https://doi.org/10.1117/12.3019663

KEYWORDS: Cameras, Wavefront sensors, Image processing, Dark current, Adaptive optics, Simulations, Image acquisition, Field programmable gate arrays, Signal processing, Frame grabbers

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Proceedings Article | 27 August 2024 Poster + Paper

Poster + Paper

ULTIMATE-START: results of on-sky engineering observations of a prototype Shack-Hartmann wavefront sensor with the Subaru Telescope

Masayuki Akiyama, Yosuke Minowa, Yoshito Ono, Koki Terao, Hajime Ogane, Riki Homan, Masaya Ichinose, Hiyori Tanabe, Shin Oya

Proceedings Volume 13097, 1309781 (2024) https://doi.org/10.1117/12.3020658

KEYWORDS: Wavefront sensors, Prototyping, Telescopes, Stars, Mirrors, Engineering, Relays, Wavefronts, Wavefront errors, Tomography

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Proceedings Article | 27 August 2024 Poster + Paper

Poster + Paper

SHARPEST: atmospheric turbulence characterization for future AO systems at the Subaru Telescope

Hajime Ogane, Yoshito Ono, Yosuke Minowa, Koki Terao, Shin Oya, Takumi Akasawa, Riki Homan, Masayuki Akiyama

Proceedings Volume 13097, 1309747 (2024) https://doi.org/10.1117/12.3017269

KEYWORDS: Turbulence, Sensors, Atmospheric turbulence, Telescopes, Scintillation, Adaptive optics, Stars, Signal to noise ratio, Covariance, Mirrors

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Proceedings Article | 27 August 2024 Poster + Paper

Poster + Paper

ULTIMATE-START: development of a propagation model for 4-beam laser guide stars

Akimasa Ojika, Yosuke Minowa, Yoshito Ono, Masayuki Akiyama

Proceedings Volume 13097, 1309733 (2024) https://doi.org/10.1117/12.3016441

KEYWORDS: Atmospheric propagation, Simulations, Wavefront sensors, Laser beam propagation, Sodium, Device simulation, Telescopes, Optical simulations, Ray tracing, Laser guide stars

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Proceedings Article | 27 August 2024 Poster + Paper

Poster + Paper

Temporal control of the ground-layer adaptive optics system in ULTIMATE-Subaru

Yoshito Ono, Yosuke Minowa, Shin Oya, Koki Terao, Masayuki Akiyama, Celine D'Orgeville, Noelia Martínez Rey, Jesse Cranney

Proceedings Volume 13097, 130976K (2024) https://doi.org/10.1117/12.3020448

KEYWORDS: Wavefront sensors, Camera shutters, Telescopes, Sensors, Point spread functions, Numerical simulations, Design, Control systems, Device simulation, Computer simulations

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Proceedings Article | 27 August 2024 Poster + Paper

Poster + Paper

Subaru laser guide star system upgrade and on-sky characterization

Yosuke Minowa, Yoshito Ono, Yoshiyuki Doi, Yoko Tanaka, Takamasa Bando, Hiroshige Yoshida, Koki Terao, Hirofumi Okita, Matthew Wung, Lucio Ramos, Hajime Ogane, Akimasa Ojika, Masayuki Akiyama

Proceedings Volume 13097, 1309735 (2024) https://doi.org/10.1117/12.3018789

KEYWORDS: Laser guide stars, Telescopes, Laser systems engineering, Relays, Wavefront sensors, Mirrors, Camera shutters, Control systems, Adaptive optics, Stars

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Proceedings Article | 5 August 2024 Presentation + Paper

Presentation + Paper

Project overview and update on ULTIMATE-Subaru: the next-generation wide-field AO instrument for the Subaru telescope

Yosuke Minowa, Yusei Koyama, Masayuki Akiyama, Sadman Ali, Takamasa Bando, Joshua Carter, David Chandler, Chi-Yi Chou, Jesse Cranney, Celine D'Orgeville, Yutaka Hayano, Takashi Hattori, Roger Haynes, Dionne Haynes, Angela Hernandez Delgado, Nicholas Herrald, Masayuki Hirabayashi, Junichi Katakura, Masahiko Kimura, Tadayuki Kodama, Masahiro Konishi, Andrew Kruse, Noelia Martinez Rey, Kumiko Morihana, Masaki Morita, Kentaro Motohara, Yoshiyuki Obuchi, Hajime Ogane, Hirofumi Okita, Yoshito Ono, Shin Oya, Naohisa Sato, Yuhei Takagi, Hideki Takami, Ichi Tanaka, Yoko Tanaka, Koki Terao, Chihiro Tokoku, Fumihiro Uraguchi, Lu Wang, Shiang-Yu Wang, Kenshi Yanagisawa, Hiroshige Yoshida, Michitoshi Yoshida

Proceedings Volume 13096, 130961A (2024) https://doi.org/10.1117/12.3018698

KEYWORDS: Telescopes, Equipment, Wavefront sensors, Design, Adaptive optics, Near infrared, Imaging systems, Spectrographs, Prototyping, Sensors

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

Compensation of defective pixels by mechanical shift of an NIR array detector used in the NINJA echelle spectrograph

Kenshi Yanagisawa, Chihiro Tokoku, Kentaro Motohara, Shinobu Ozaki, Yoshito Ono, Yosuke Minowa, Takashi Moriya, Masami Ouchi, Nozomu Tominaga, Masayuki Tanaka, Yutaka Hayano, Yusei Koyama, Sadman Ali, Masaomi Tanaka, Masayuki Akiyama, Tohru Nagao, Yoshiki Matsuoka, Kosuke Kushibiki, Shogo Homan, Akino Yasuda, Tomoya Yukino, Riku Sato, Kensho Tanaka, Tomoyasu Yamamuro, Michitoshi Yoshida

Proceedings Volume 13096, 130966R (2024) https://doi.org/10.1117/12.3016873

KEYWORDS: Sensors, Spectrographs, Detector arrays, Simulations, Airglow, Adaptive optics, Telescopes, Near infrared, Motion detection, Calibration

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Proceedings Article | 30 August 2022 Presentation + Paper

Presentation + Paper

ULTIMATE-Subaru: GLAO preliminary design overview

Yosuke Minowa, Yoshito Ono, Yoko Tanaka, Hiroshige Yoshida, Koki Terao, Yusei Koyama, Sadman Ali, Ichi Tanaka, Takashi Hattori, Hirofumi Okita, Yutaka Hayano, Shin Oya, Kentaro Motohara, Kenshi Yanagisawa, Michitoshi Yoshida, Masayuki Akiyama, Tadayuki Kodama, Hajime Ogane, Masahiro Konishi, Noelia Martinez Rey, Nicholas Herrald, Céline d'Orgeville, François Rigaut, Israel Vaughn, David Chandler, Dionne Haynes, Warrick Schofield, Shiang-Yu Wang, Chi-Yi Chou, Masahiko Kimura

Proceedings Volume 12185, 1218521 (2022) https://doi.org/10.1117/12.2629749

KEYWORDS: Telescopes, Mirrors, Control systems, Stars, Camera shutters, Adaptive optics, Wavefront sensors, Optical instrument design, Near infrared, Monochromatic aberrations

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Proceedings Article | 30 August 2022 Poster + Paper

Poster + Paper

Optical design of the wavefront sensing in the ULTIMATE-Subaru Ground Layer Adaptive Optics system

Yoko Tanaka, Yosuke Minowa, Yoshito Ono, Koki Terao, Hiroshige Yoshida, Masayuki Akiyama, Noelia Martínez Rey, Nicholas Herrald, Céline d'Orgeville, François Rigaut, Israel Vaughn, David Chandler, Dionne Haynes, Warrick Schofield

Proceedings Volume 12185, 121856M (2022) https://doi.org/10.1117/12.2629581

KEYWORDS: Mirrors, Monochromatic aberrations, Telescopes, Cameras, Optical design, Wavefront sensors, Collimators, Adaptive optics, Optical components, Tolerancing

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Proceedings Article | 30 August 2022 Poster + Paper

Poster + Paper

High contrast and high angular imaging at Subaru Telescope

Olivier Guyon, Kyohoon Ahn, Masayuki Akiyama, Thayne Currie, Vincent Deo, Takshi Hattori, Tomoyuki Kudo, Julen Lozi, Yosuke Minowa, Yoshito Ono, Nour Skaf, Motohide Tamura, Sebastien Vievard

Proceedings Volume 12185, 121856J (2022) https://doi.org/10.1117/12.2630534

KEYWORDS: Adaptive optics, Telescopes, Near infrared, Wavefront sensors, Imaging systems, Astronomy, Spectrographs, Infrared telescopes, Exoplanets, Coronagraphy

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Proceedings Article | 30 August 2022 Presentation + Paper

Presentation + Paper

Aliasing effect of rolling shutter readout in laser guide star wavefront sensing

Hajime Ogane, Masayuki Akiyama, Jesse Cranney, François Rigaut, Noelia Martinez Rey, Celine D'Orgeville, Yosuke Minowa, Yoshito Ono

Proceedings Volume 12185, 121850N (2022) https://doi.org/10.1117/12.2629689

KEYWORDS: Camera shutters, Wavefront sensors, Wavefronts, Telescopes, Adaptive optics, Monochromatic aberrations, Laser guide stars, Sensors, Device simulation, Signal attenuation

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Proceedings Article | 30 August 2022 Poster + Paper

Poster + Paper

ULTIMATE-START: current status of the Subaru Tomography Adaptive optics Research experimenT

Koki Terao, Masayuki Akiyama, Yosuke Minowa, Yoshito Ono, Hajime Ogane, Takumi Akasawa, Shin Oya, Tomoyasu Yamamuro

Proceedings Volume 12185, 121856L (2022) https://doi.org/10.1117/12.2629652

KEYWORDS: Adaptive optics, Tomography, Near infrared, Turbulence, Relays, Prototyping

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

NINJA: an LTAO assisted optical and near-infrared spectrograph of Subaru Telescope

Chihiro Tokoku, Shinobu Ozaki, Takashi Moriya, Kenshi Yanagisawa, Kentaro Motohara, Masami Ouchi, Nozomu Tominaga, Masaomi Tanaka, Yoshito Ono, Yosuke Minowa, Yutaka Hayano, Yusei Koyama, Sadman Ali, Masayuki Tanaka, Masayuki Akiyama, Tohru Nagao, Yoshiki Matsuoka, Kosuke Kushibiki, Shogo Homan, Akino Yasuda, Michitoshi Yoshida

Proceedings Volume 12184, 121847R (2022) https://doi.org/10.1117/12.2627749

KEYWORDS: Spectrographs, Adaptive optics, Near infrared, Telescopes, Optical design, Astronomy, Tomography

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Proceedings Article | 29 August 2022 Presentation

Presentation

Covariance-based analytical algorithm to predict the performance of tomographic AO systems

Yoshito Ono, Masayuki Akiyama, Koki Terao, Yosuke Minowa, Hajime Ogane, Shin Oya

Proceedings Volume 12185, 121850F (2022) https://doi.org/10.1117/12.2628873

KEYWORDS: Adaptive optics, Tomography, Wavefront sensors, Point spread functions, Deformable mirrors, Computer simulations, Algorithm development, Wavefronts, Stars, Optical simulations

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

SPICA Mid-infrared Instrument (SMI): The latest design and specifications

Takehiko Wada, Hidehiro Kaneda, Takuma Kokusho, Toyoaki Suzuki, Kumiko Morihana, Takurou Tsuchikawa, Yuki Kuroda, Daichi Ishikawa, Shinki Oyabu, Naoki Isobe, Daisuke Ishihara, Hideo Matsuhara, Koichi Nagase, Takao Nakagawa, Takafumi Ootsubo, Mitsuyoshi Yamagishi, Hiroshi Maeshima, Shunsuke Onishi, Kosei Matsumoto, Satoshi Itoh, Mizuho Uchiyama, Ryan Lau, Hiromichi Ebihara, Hanae Inami, Koji Kawabata, Yasumasa Kasaba, Takeshi Sakanoi, Yoshifusa Ita, Masayuki Akiyama, Itsuki Sakon, Takafumi Kamizuka, Takashi Miyata, Kohji Tsumura, Masato Naruse, Youichi Ohyama, Shiang-Yu Wang, Hiroshi Shibai

Proceedings Volume 11443, 114436G (2020) https://doi.org/10.1117/12.2561157

KEYWORDS: Spectroscopy, Mid-IR, Cameras, Sensors, Galactic astronomy, James Webb Space Telescope, Spectroscopes, Content addressable memory, Prisms, Imaging systems

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Atmospheric turbulence profiling with a Shack-Hartmann wavefront sensor

Hajime Ogane, Masayuki Akiyama, Shin Oya, Yoshito Ono

Proceedings Volume 11448, 114487P (2020) https://doi.org/10.1117/12.2562320

KEYWORDS: Wavefront sensors, Atmospheric turbulence, Profiling, Turbulence, Sensors, Image sensors, Adaptive optics, Stars, Scintillation, Motion measurement

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Overview of AO activities at Subaru Telescope

Yoshito Ono, Yosuke Minowa, Olivier Guyon, Christophe Clergeon, Etsuko Mieda, Julien Lozi, Takashi Hattori, Masayuki Akiyama

Proceedings Volume 11448, 114480K (2020) https://doi.org/10.1117/12.2561139

KEYWORDS: Adaptive optics, Telescopes, Near infrared, Imaging systems, Exoplanets, Control systems, Fiber lasers, Visible radiation, Imaging spectroscopy, Near infrared spectroscopy

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

ULTIMATE-Subaru: system performance modeling of GLAO and wide-field NIR instruments

Yosuke Minowa, Yusei Koyama, Kenshi Yanagisawa, Kentaro Motohara, Ichi Tanaka, Yoshito Ono, Takashi Hattori, Christophe Clergeon, Yutaka Hayano, Masayuki Akiyama, Tadayuki Kodama, Céline d'Orgeville, Francois Rigaut, Shiang-Yu Wang, Michitoshi Yoshida

Proceedings Volume 11450, 114500O (2020) https://doi.org/10.1117/12.2561950

KEYWORDS: Near infrared, Performance modeling, Systems modeling, Imaging systems, Imaging spectroscopy, Cesium, Telescopes, Near infrared spectroscopy, Spectroscopes, Infrared telescopes

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Measurements of image quality and surface shape of microlens arrays for Shack-Hartmann wavefront sensors

Koki Terao, Masayuki Akiyama, Shin Oya

Proceedings Volume 11448, 1144865 (2020) https://doi.org/10.1117/12.2562199

KEYWORDS: Image quality, Wavefront sensors, Microlens array, Quality measurement, Microlens, Wavefronts, CCD cameras, CMOS cameras, Antireflective coatings, Interferometers

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

ULTIMATE-START: Subaru tomography adaptive optics research experiment project overview

Masayuki Akiyama, Yosuke Minowa, Yoshito Ono, Koki Terao, Hajime Ogane, Kaoru Oomoto, Yuta Iizuka, Shin Oya, Etsuko Mieda, Tomoyasu Yamamuro

Proceedings Volume 11448, 114481O (2020) https://doi.org/10.1117/12.2560872

KEYWORDS: Adaptive optics, Tomography, Wavefront sensors, Near infrared, Camera shutters, Cameras, Spectrographs, Optical tomography, Optical calibration, Telescopes

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Proceedings Article | 3 January 2020 Paper

Paper

ULTIMATE-Subaru: enhancing the Subaru's wide-field capability with GLAO

Yosuke Minowa, Yusei Koyama, Yoshito Ono, Ichi Tanaka, Takashi Hattori, Christophe Clergeon, Masayuki Akiyama, Tadayuki Kodama, Kentaro Motohara, François Rigaut, Céline d'Orgeville, Shiang-Yu Wang, Michitoshi Yoshida

Proceedings Volume 11203, 112030G (2020) https://doi.org/10.1117/12.2560539

KEYWORDS: Near infrared, Imaging systems, Imaging spectroscopy, Telescopes, Cesium, Near infrared spectroscopy, Spectroscopes, Infrared telescopes, Adaptive optics, Spatial resolution

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Proceedings Article | 12 July 2018 Paper

Paper

Current status of the laser guide star upgrade at Subaru Telescope

Etsuko Mieda, Yoko Tanaka, Matthew Wung, Yosuke Minowa, Christophe Clergeon, Yoshito Ono, Takashi Hattori, Yutaka Hayano, Masayuki Akiyama, Francois Rigaut, Celine d'Orgeville

Proceedings Volume 10703, 107033P (2018) https://doi.org/10.1117/12.2314093

KEYWORDS: Telescopes, Adaptive optics, Laser guide stars, Fiber lasers, Laser applications, Lasers

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

A conceptual design study for Subaru ULTIMATE GLAO

François Rigaut, Yosuke Minowa, Masayuki Akiyama, Yoshito Ono, Visa Korkiakoski, Nick Herrald, Gaston Gausachs, Christophe Clergeon, Shiang-Yu Wang, Céline d'Orgeville, Jordan Davies, Yusei Koyama, Ikuru Iwata, Tadayuki Kodama, Kentrao Motohara, Yutaka Hayano, Ichi Tanaka, Takashi Hattori, Michitoshi Yoshida

Proceedings Volume 10703, 1070324 (2018) https://doi.org/10.1117/12.2314085

KEYWORDS: Telescopes, Adaptive optics, Spectrographs, Wavefront sensors, Monte Carlo methods, Near infrared, Imaging systems, Stars, Astronomical imaging, Turbulence

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

On-going and future AO activities on Subaru Telescope

Yoshito Ono, Yosuke Minowa, Christophe Clergeon, Etsuko Mieda, Olivier Guyon, Julien Lozi, Masayuki Akiyama, Francois Rigaut, Yutaka Hayano, Shin Oya

Proceedings Volume 10703, 107030M (2018) https://doi.org/10.1117/12.2312379

KEYWORDS: Adaptive optics, Telescopes, Real-time computing, Tomography, Near infrared, Laser systems engineering, Wavefront sensors, Imaging spectroscopy

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

Gemini infrared multi-object spectrograph: instrument overview

Suresh Sivanandam, Scott Chapman, Luc Simard, Paul Hickson, Kim Venn, Simon Thibault, Marcin Sawicki, Adam Muzzin, Darren Erickson, Roberto Abraham, Masayuki Akiyama, David Andersen, Colin Bradley, Raymond Carlberg, Shaojie Chen, Carlos Correia, Tim Davidge, Sara Ellison, Kamal El-Sankary, Gregory Fahlman, Masen Lamb, Olivier Lardière, Marie Lemoine-Busserolle, Dae-Sik Moon, Norman Murray, Alison Peck, Cyrus Shafai, Gaetano Sivo, Jean-Pierre Veran, Howard Yee

Proceedings Volume 10702, 107021J (2018) https://doi.org/10.1117/12.2313924

KEYWORDS: Spectrographs, Galactic astronomy, Adaptive optics, Telescopes, James Webb Space Telescope, Stars, Infrared spectroscopy, Infrared radiation, Gemini Observatory, Imaging spectroscopy

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Proceedings Article | 27 July 2016 Paper

Paper

The statistics of atmospheric turbulence at Maunakea measured by RAVEN

Y. Ono, Carlos Correia, O. Lardière, D. Andersen, S. Oya, M. Akiyama, D. Gamroth, K. Jackson, O. Martin, A. Guesalaga, C. Bradley

Proceedings Volume 9909, 99093E (2016) https://doi.org/10.1117/12.2232359

KEYWORDS: Adaptive optics, Turbulence, Atmospheric turbulence, Statistical analysis, Atmospheric sensing, Tomography, Sensors, Wavefront sensors, Statistical analysis, Telescopes, Ranging

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Proceedings Article | 26 July 2016 Paper

Paper

On-sky MOAO performance evaluation of RAVEN

Y. Ono, Carlos Correia, O. Lardière, D. Andersen, S. Oya, M. Akiyama, D. Gamroth, K. Jackson, O. Martin, C. Bradley

Proceedings Volume 9909, 990910 (2016) https://doi.org/10.1117/12.2232321

KEYWORDS: Adaptive optics, Telescopes, Tomography, Stars, Atmospheric sciences, Atmospheric optics, Turbulence, Ranging, Calibration, Spectrographs

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Proceedings Article | 7 August 2014 Paper

Paper

ULTIMATE-SUBARU: simulation update

Shin Oya, Yutaka Hayano, Olivier Lai, Ikuru Iwata, Tadayuki Kodama, Nobuo Arimoto, Yosuke Minowa, Masayuki Akiyama, Yoshito Ono, Hiroshi Terada, Tomonori Usuda, Hideki Takami, Tetsuo Nishimura, Naruhisa Takato, Daigo Tomono

Proceedings Volume 9148, 91486G (2014) https://doi.org/10.1117/12.2055701

KEYWORDS: Turbulence, Adaptive optics, Point spread functions, Device simulation, Atmospheric modeling, Telescopes, K band, Astronomy, Mirrors, Atmospheric turbulence

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Proceedings Article | 7 August 2014 Paper

Paper

TMT-AGE: numerical simulation of a new tomographic reconstruction method for wide FoR MOAO

Yoshito Ono, Masayuki Akiyama, Shin Oya

Proceedings Volume 9148, 91486M (2014) https://doi.org/10.1117/12.2055912

KEYWORDS: Tomography, Atmospheric turbulence, Numerical simulations, Galactic astronomy, Adaptive optics, Telescopes, Wavefronts, Time metrology, Stars, Thirty Meter Telescope

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Proceedings Article | 24 July 2014 Paper

Paper

TMT-AGE: wide field of regard multi-object adaptive optics for TMT

Masayuki Akiyama, Shin Oya, Yoshito Ono, Hideki Takami, Shinobu Ozaki, Yutaka Hayano, Ikuru Iwata, Kazuhiro Hane, Tong Wu, Tomoyasu Yamamuro, Yuji Ikeda

Proceedings Volume 9148, 914814 (2014) https://doi.org/10.1117/12.2056320

KEYWORDS: Galactic astronomy, Adaptive optics, Photovoltaics, Tomography, Point spread functions, Spectroscopy, Mirrors, Optical design, K band, Microelectromechanical systems

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Proceedings Article | 21 July 2014 Paper

Paper

ULTIMATE-SUBARU: project status

Yutaka Hayano, Masayuki Akiyama, Takashi Hattori, Ikuru Iwata, Tadayuki Kodama, Olivier Lai, Yosuke Minowa, Yoshito Ono, Shin Oya, Koki Takiura, Ichi Tanaka, Yoko Tanaka, Nobuo Arimito

Proceedings Volume 9148, 91482S (2014) https://doi.org/10.1117/12.2055042

KEYWORDS: Galactic astronomy, Telescopes, Wavefront sensors, Mirrors, Space telescopes, Adaptive optics, Near infrared, Imaging systems, Stars, Spectrographs

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Proceedings Article | 21 July 2014 Paper

Paper

Multi-object adaptive optics on-sky results with Raven

Olivier Lardière, Dave Andersen, Célia Blain, Colin Bradley, Darryl Gamroth, Kate Jackson, Przemek Lach, Reston Nash, Kim Venn, Jean-Pierre Véran, Carlos Correia, Shin Oya, Yutaka Hayano, Hiroshi Terada, Yoshito Ono, Masayuki Akiyama

Proceedings Volume 9148, 91481G (2014) https://doi.org/10.1117/12.2055480

KEYWORDS: Adaptive optics, Telescopes, Stars, Cameras, Spectrographs, Turbulence, Calibration, Saturn, Tomography, Galactic astronomy

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Proceedings Article | 5 March 2013 Paper

Paper

A continuous single-crystal-silicon membrane deformable mirror using bimorph spring

Tong Wu, Takashi Sasaki, Masayuki Akiyama, Kazuhiro Hane

Proceedings Volume 8617, 861704 (2013) https://doi.org/10.1117/12.2002785

KEYWORDS: Mirrors, Silicon, Etching, Electrodes, Wafer bonding, Semiconducting wafers, Actuators, Deformable mirrors, Gold, Photomasks

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Proceedings Article | 24 September 2012 Paper

Paper

Subaru FMOS now and future

Naoyuki Tamura, Naruhisa Takato, Fumihide Iwamuro, Masayuki Akiyama, Masahiko Kimura, Philip Tait, Gavin Dalton, Graham Murray, Scott Smedley, Toshinori Maihara, Kouji Ohta, Yuuki Moritani, Kiyoto Yabe, Masanao Sumiyoshi, Tomonori Totani, Hajime Sugai, Hiroshi Karoji, Shiang-Yu Wang, Youichi Ohyama

Proceedings Volume 8446, 84460M (2012) https://doi.org/10.1117/12.925831

KEYWORDS: Stars, Telescopes, Mirrors, Spectrographs, Sensors, Cameras, Astronomy, Galactic astronomy, Metrology, Lawrencium

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Proceedings Article | 13 September 2012 Paper

Paper

MOAO test bench in Tohoku University

Masayuki Akiyama, Yoshito Ono, Shin Oya, Kazuhiro Hane, Tong Wu

Proceedings Volume 8447, 844755 (2012) https://doi.org/10.1117/12.925974

KEYWORDS: Stars, Adaptive optics, Tomography, Telescopes, Wavefront sensors, Optical simulations, Light sources, Single mode fibers, Wavefronts, Control systems

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Proceedings Article | 13 September 2012 Paper

Paper

A preliminary simulation result of the next-generation wide-field AO at Subaru Telescope

Shin Oya, Masayuki Akiyama, Yutaka Hayano, Yosuke Minowa, Ikuru Iwata, Hiroshi Terada, Tomonori Usuda, Hideki Takami, Tetsuo Nishimura, Tadayuki Kodama, Naruhisa Takato, Daigo Tomono, Yoshito Ono

Proceedings Volume 8447, 84473V (2012) https://doi.org/10.1117/12.926556

KEYWORDS: Adaptive optics, Device simulation, Stars, Telescopes, Mirrors, Turbulence, Atmospheric modeling, Actuators, K band, Optical simulations

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Proceedings Article | 28 July 2010 Paper

Paper

MOAO activities in Tohoku University

Masayuki Akiyama, Shin Oya, Kazuhiro Hane, Tong Wu, Chihiro Tohoku

Proceedings Volume 7736, 77362L (2010) https://doi.org/10.1117/12.857415

KEYWORDS: Adaptive optics, Telescopes, Microelectromechanical systems, Deformable mirrors, Wavefronts, Prototyping, Tomography, Digital signal processing, Diffraction, Amplifiers

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Proceedings Article | 15 July 2010 Paper

Paper

FMOS the fibre multiple-object spectrograph, part VIII: current performances and results of the engineering observations

Masahiko Kimura, Masayuki Akiyama, Gavin Dalton, Fumihide Iwamuro, Ian Lewis, Toshinori Maihara, Kouji Ohta, Philip Tait, Naruhisa Takato, Naoyuki Tamura, Ian Tosh, Scott Smedley, Emma Curtis Lake, Takeshi Inagaki, Eric Jeschke, Kaori Kawate, Yuuki Moritani, Masanao Sumiyoshi, Kiyoto Yabe

Proceedings Volume 7735, 77351K (2010) https://doi.org/10.1117/12.857416

KEYWORDS: Telescopes, Stars, Spectrographs, Calibration, Fiber science, Astronomy, Switching, Astronomical imaging, Observatories, Actuators

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Proceedings Article | 14 July 2010 Paper

Paper

Raven: a harbinger of multi-object adaptive optics-based instruments at the Subaru Telescope

Rodolphe Conan, Colin Bradley, Olivier Lardière, Celia Blain, Kim Venn, David Andersen, Luc Simard, Jean-Pierre Véran, Glen Herriot, David Loop, Tomonori Usuda, Shin Oya, Yutaka Hayano, Hiroshi Terada, Masayuki Akiyama

Proceedings Volume 7736, 77360T (2010) https://doi.org/10.1117/12.856567

KEYWORDS: Adaptive optics, Stars, Telescopes, Galactic astronomy, Calibration, Mirrors, Spectrographs, Cameras, Astronomy, Control systems

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Proceedings Article | 23 July 2008 Paper

Paper

Performance of Echidna fiber positioner for FMOS on Subaru

Masayuki Akiyama, Scott Smedley, Peter Gillingham, Jurek Brzeski, Tony Farrell, Masahiko Kimura, Rolf Muller, Naoyuki Tamura, Naruhisa Takato

Proceedings Volume 7018, 70182V (2008) https://doi.org/10.1117/12.788968

KEYWORDS: Spine, Distortion, Telescopes, Stars, Cameras, Spectrographs, Fiber science, Actuators, Calibration, Observatories

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Proceedings Article | 11 July 2008 Paper

Paper

FMOS: the fiber multiple-object spectrograph: Part VI. Onboard performances and results of the engineering observations

Fumihide Iwamuro, Toshinori Maihara, Masayuki Akiyama, Masahiko Kimura, Naoyuki Tamura, Naruhisa Takato, Philip Tait, Kouji Ohta, Shigeru Eto, Yuuki Moritani, Gavin Dalton, Ian Lewis, Hanshin Lee, Ian A. Tosh, Tim Froud, Graham Murray, Colin Blackburn, David Bonfield, Peter Gillingham, Scott Smedley, Greg Smith, Gabriella Frost

Proceedings Volume 7014, 70140T (2008) https://doi.org/10.1117/12.787746

KEYWORDS: Telescopes, Spectrographs, Lenses, Stars, Sensors, Mirrors, Space telescopes, Infrared spectroscopy, Infrared radiation, Monochromatic aberrations

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Proceedings Article | 11 July 2008 Paper

Paper

Integration, commissioning, and performance of the UK FMOS spectrograph

Gavin Dalton, Ian Lewis, Ian A. J. Tosh, Colin Blackburn, David Bonfield, Charles Brooks, Alan Holmes, Hanshin Lee, Tim Froud, Masayuki Akiyama, Naoyuki Tamura, Naruhisa Takato

Proceedings Volume 7014, 70143W (2008) https://doi.org/10.1117/12.787619

KEYWORDS: Spectrographs, Mirrors, Cameras, Telescopes, Photomasks, Stars, Sensors, Astronomical imaging, Calibration, Space telescopes

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Proceedings Article | 11 July 2008 Paper

Paper

FMOS: the Fibre Multi-Object Spectrograph: Part VII. Results of PIR engineering run

Masahiko Kimura, Toshinori Maihara, Fumihide Iwamuro, Masayuki Akiyama, Naoyuki Tamura, Naruhisa Takato, Kouji Ohta, Shigeru Eto

Proceedings Volume 7014, 70145K (2008) https://doi.org/10.1117/12.790252

KEYWORDS: Telescopes, Cameras, Spectrographs, Mirrors, Distortion, Electroluminescence, Astronomical imaging, Wavefront sensors, Infrared radiation, Optical alignment

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Proceedings Article | 29 June 2006 Paper

Paper

FMOS: The fiber multi-object spectrograph V results of early PIR engineering run

Masahiko Kimura, Toshinori Maihara, Fumihide Iwamuro, Shigeru Eto, Masayuki Akiyama, Kouji Ohta, Michinari Sakai, Naoyuki Tamura, Daisaku Mochida

Proceedings Volume 6269, 626944 (2006) https://doi.org/10.1117/12.670705

KEYWORDS: Telescopes, Mirrors, Spectrographs, Astronomical imaging, Electroluminescence, Stars, Monochromatic aberrations, CCD cameras, Imaging systems, Astronomy

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Proceedings Article | 28 June 2006 Paper

Paper

Infrared multi-object spectrograph of MOIRCS

Chihiro Tokoku, Ryuji Suzuki, Koji Omata, Masahiro Konishi, Tomohiro Yoshikawa, Masayuki Akiyama, Ichi Tanaka, Takashi Ichikawa, Tetsuo Nishimura

Proceedings Volume 6269, 62694N (2006) https://doi.org/10.1117/12.672418

KEYWORDS: Molybdenum, Stars, Telescopes, Sensors, Cryogenics, K band, Astronomical imaging, Spectroscopy, Spectrographs, Thermal effects

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Proceedings Article | 28 June 2006 Paper

Paper

FMOS: the fiber multiple-object spectrograph IV: current status of OHS-based spectrograph

Fumihide Iwamuro, Toshinori Maihara, Kouji Ohta, Shigeru Eto, Michinari Sakai, Masayuki Akiyama, Masahiko Kimura, Naoyuki Tamura, Junichi Noumaru, Hiroshi Karoji, Gavin Dolton, Ian Lewis, Ian Tosh, Graham Murray, Nigel Dipper, David Robertoson, Peter Gillingham, Scott Smedley, Greg Smith, Gabriella Frost

Proceedings Volume 6269, 62691B (2006) https://doi.org/10.1117/12.671006

KEYWORDS: Spectrographs, Mirrors, Sensors, Cameras, Infrared radiation, Optical alignment, Actuators, Telescopes, Reflectivity, Temperature metrology

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Proceedings Article | 30 September 2004 Paper

Paper

The fiber multi-object spectrograph (FMOS) for the Subaru Telescope III

Shigeru Eto, Toshinori Maihara, Kouji Ohta, Fumihide Iwamuro, Masahiko Kimura, Daisaku Mochida, Shinpei Wada, Satoko Imai, Yusuke Narita, Yu Nakajima, Hiroshi Karoji, Jun'ichi Noumaru, Masayuki Akiyama, Peter Gillingham, Scott Smedley, Naoyuki Tamura

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551087

KEYWORDS: Spectrographs, Telescopes, Control systems, Sensors, Astronomical imaging, Control systems design, Imaging systems, Cameras, Computing systems, Infrared radiation

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Proceedings Article | 28 September 2004 Paper

Paper

Subaru Telescope: current performances and future upgrade plans

Tomonori Usuda, Naruhisa Takato, Tomio Kanzawa, Akihiko Miyashita, Fumihiro Uraguchi, Tomio Kurakami, George Kosugi, Saeko Hayashi, Masayuki Akiyama, Noboru Itoh, Satoru Negishi, Shinji Sugahara, Wataru Tanaka

Proceedings Volume 5489, (2004) https://doi.org/10.1117/12.552434

KEYWORDS: Telescopes, Mirrors, Silver, Adaptive optics, Image quality, Cameras, Reflectivity, Stars, CCD cameras, Coating

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Proceedings Article | 7 March 2003 Paper

Paper

Spine development for the Echidna fiber positioner

Anna Moore, Peter Gillingham, Jason Griesbach, Masayuki Akiyama

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.462333

KEYWORDS: Spine, Prototyping, Electrodes, Actuators, Telescopes, Astronomical imaging, Temperature metrology, Video, Cameras, Calibration

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Proceedings Article | 7 March 2003 Paper

Paper

The Fiber Multi-Object Spectrograph (FMOS) for the Subaru Telescope

Masahiko Kimura, Toshinori Maihara, Kouji Ohta, Fumihide Iwamuro, Sigeru Eto, Masafumi Lino, Daisaku Mochida, Takanori Shima, Hiroshi Karoji, Junichi Noumaru, Masayuki Akiyama, Jurek Brzeski, Peter Gillingham, Anna Moore, Greg Smith, Gavin Dalton, Ian Tosh, Graham Murray, David Robertson, Naoyuki Tamura

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461208

KEYWORDS: Spectrographs, Cameras, Telescopes, Silica, Mirrors, Connectors, Spine, Spectral resolution, Imaging systems, Astronomical imaging

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Proceedings Article | 7 March 2003 Paper

Paper

The Fiber Multi-Object Spectrograph (FMOS) project: the Anglo-Australian Observatory role

Peter Gillingham, Anna Moore, Masayuki Akiyama, Jurek Brzeski, David Correll, John Dawson, Tony Farrell, Gabriella Frost, Jason Griesbach, Roger Haynes, Damien Jones, Stan Miziarski, Rolf Muller, Scott Smedley, Greg Smith, Lew Waller, Katie Noakes, Chris Arridge

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.462002

KEYWORDS: Spine, Telescopes, Spectrographs, Electronics, Cameras, Observatories, Imaging systems, Electrodes, Calibration, Astronomical imaging

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Proceedings Article | 16 August 2000 Paper

Paper

Fiber multi-object spectrograph (FMOS) for the Subaru Telescope

Toshinori Maihara, Kouji Ohta, Naoyuki Tamura, Hiroshi Ohtani, Masayuki Akiyama, Junichi Noumaru, Norio Kaifu, Hiroshi Karoji, Masanori Iye, Gavin Dalton, Ian Parry, David Robertson, Ray Sharples, Deqing Ren, Jeremy Allington-Smith, Keith Taylor, Peter Gillingham

Proceedings Volume 4008, (2000) https://doi.org/10.1117/12.395429

KEYWORDS: Spectrographs, Optical spheres, Telescopes, Near infrared, Mirrors, Astronomical imaging, Spectroscopy, Stars, Optical components, Galactic astronomy

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Proceedings Article | 16 August 2000 Paper

Paper

Echidna: a multifiber positioner for the Subaru prime focus

Peter Gillingham, Stan Miziarski, Masayuki Akiyama, Volker Klocke

Proceedings Volume 4008, (2000) https://doi.org/10.1117/12.395458

KEYWORDS: Spine, Optical fibers, Prototyping, Telescopes, Actuators, Charge-coupled devices, Electrodes, Microscopes, Magnetism, Calibration

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Showing 5 of 54 publications

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