Dr. Nobuyuki Hashimoto Profile

Dr. Nobuyuki Hashimoto

Senior Researcher

SPIE Involvement:

Conference Program Committee | Author

Publications (32)

Proceedings Article | 17 February 2020 Paper

In vivo visualization of blood vessels in mouse ear by photoacoustic microscopy with transmissive liquid-crystal adaptive optics

Yusuke Notsuka, Makoto Kurihara, Nobuyuki Hashimoto, Eiji Takahashi, Yoshihisa Yamaoka

Proceedings Volume 11240, 1124039 (2020) https://doi.org/10.1117/12.2545777

KEYWORDS: Adaptive optics, Liquid crystals, In vivo imaging, Visualization, Ear, Objectives, Blood vessels, Spatial resolution

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Proceedings Article | 17 May 2018 Paper

Photoacoustic microscopy with transmissive adaptive optics using liquid crystal

Yusuke Notsuka, Makoto Kurihara, Nobuyuki Hashimoto, Yoshinori Harada, Eiji Takahashi, Yoshihisa Yamaoka

Proceedings Volume 10685, 106853N (2018) https://doi.org/10.1117/12.2306740

KEYWORDS: Adaptive optics, Liquid crystals, Tissues, Photoacoustic microscopy, Wavefront aberrations, Visualization, Optical components, Tissue optics, Blood vessels

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Proceedings Article | 19 June 2017 Open Access

Novel gratings for next-generation instruments of astronomical observations

N. Ebizuka, T. Okamoto, M. Takeda, T. Hosobata, Y. Yamagata, M. Sasaki, M. Uomoto, T. Shimatsu, S. Sato, N. Hashimoto, I. Tanaka, T. Hattori, S. Ozaki, W. Aoki

Proceedings Volume 10233, 102330M (2017) https://doi.org/10.1117/12.2264892

KEYWORDS: Diffraction gratings, Diffraction, Telescopes, Silicon, Space telescopes, Prisms, Astronomical telescopes, Spectrographs, Polarization, Fiber Bragg gratings, Gold, Reflectors, Ultraviolet radiation

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SPIE Journal Paper | 14 February 2017 Open Access

Optical coherence tomography with a 2.8-mm beam diameter and sensorless defocus and astigmatism correction

Maddipatla Reddikumar, Ayano Tanabe, Nobuyuki Hashimoto, Barry Cense

JBO, Vol. 22, Issue 02, 026005, (February 2017) https://doi.org/10.1117/12.10.1117/1.JBO.22.2.026005

KEYWORDS: Optical coherence tomography, Monochromatic aberrations, Aberration correction, Eye, Imaging systems, Sensors, Retina, Speckle, Adaptive optics optical coherence tomography, Adaptive optics

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Proceedings Article | 27 September 2016 Presentation + Paper

Physical and encoded Q-plates for the generation of switchable vector beams

Ignacio Moreno, María del Mar Sánchez-López, Jeffrey Davis, Katherine Badham, Sam Delaney, Don Cottrell, Nobuyuki Hashimoto, Ayano Tanabe, Makoto Kurihara

Proceedings Volume 9950, 99500L (2016) https://doi.org/10.1117/12.2237383

KEYWORDS: Prototyping, Spatial light modulators, Polarization, Liquid crystals, Reflectivity, Modulation, Wave plates, LCDs, Beam analyzers, Mirrors

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SPIE Journal Paper | 13 September 2016 Open Access

Transmissive liquid-crystal device for correcting primary coma aberration and astigmatism in biospecimen in two-photon excitation laser scanning microscopy

Ayano Tanabe, Terumasa Hibi, Sari Ipponjima, Kenji Matsumoto, Masafumi Yokoyama, Makoto Kurihara, Nobuyuki Hashimoto, Tomomi Nemoto

JBO, Vol. 21, Issue 12, 121503, (September 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.12.121503

KEYWORDS: Monochromatic aberrations, Luminescence, Liquid crystals, Image quality, Spatial resolution, Brain, Point spread functions, Laser scanners, Electrodes, Microscopy

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Proceedings Article | 22 July 2016 Paper

Novel diffraction gratings for next generation spectrographs with high spectral dispersion

N. Ebizuka, T. Okamoto, T. Hosobata, Y. Yamagata, M. Sasaki, M. Uomoto, T. Shimatsu, S. Sato, N. Hashimoto, I. Tanaka, T. Hattori, S. Ozaki, W. Aoki

Proceedings Volume 9912, 99122Z (2016) https://doi.org/10.1117/12.2231949

KEYWORDS: Diffraction gratings, Space telescopes, Diffraction, Liquid crystals, Telescopes, Spectrographs, Polarization, Mirrors, Refractive index, Reflection

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SPIE Journal Paper | 23 March 2016

Generation of vector beams at 1550 nm telecommunications wavelength using a segmented q-plate

Katherine Badham, Sam Delaney, Nobuyuki Hashimotono, María del Mar Sánchez-López, Makoto Kurihara, Ayano Tanabe, Ignacio Moreno, Jeffrey Davis

OE, Vol. 55, Issue 03, 030502, (March 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.3.030502

KEYWORDS: Polarization, Telecommunications, Prototyping, Liquid crystals, Optical communications, Wave plates, Linear polarizers, Multiplexing, Optical components, Sensors

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Proceedings Article | 15 March 2016 Paper

Transmissive liquid-crystal device correcting primary coma aberration and astigmatism in laser scanning microscopy

Ayano Tanabe, Terumasa Hibi, Sari Ipponjima, Kenji Matsumoto, Masafumi Yokoyama, Makoto Kurihara, Nobuyuki Hashimoto, Tomomi Nemoto

Proceedings Volume 9717, 97171N (2016) https://doi.org/10.1117/12.2209459

KEYWORDS: Monochromatic aberrations, Liquid crystals, Laser scanners, Image quality, Microscopy, Luminescence, Microscopes, Objectives, Capillaries, Spatial resolution

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Proceedings Article | 15 March 2016 Paper

Propagation properties of quantized Laguerre-Gaussian beams in atmospheric turbulence

Aya Saito, Ayano Tanabe, Makoto Kurihara, Nobuyuki Hashimoto, Kayo Ogawa

Proceedings Volume 9739, 973914 (2016) https://doi.org/10.1117/12.2212517

KEYWORDS: Atmospheric propagation, Atmospheric turbulence, Free space optics, Beam propagation method, LCDs, Liquid crystals, Optical components, Modulation, Gaussian beams, Zone plates, Scintillation, Optical simulations, Receivers, Wave propagation, Wireless communications, Turbulence

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SPIE Journal Paper | 5 August 2015 Open Access

Correcting spherical aberrations in a biospecimen using a transmissive liquid crystal device in two-photon excitation laser scanning microscopy

Ayano Tanabe, Terumasa Hibi, Sari Ipponjima, Kenji Matsumoto, Masafumi Yokoyama, Makoto Kurihara, Nobuyuki Hashimoto, Tomomi Nemoto

JBO, Vol. 20, Issue 10, 101204, (August 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.10.101204

KEYWORDS: Monochromatic aberrations, Objectives, Luminescence, Spatial resolution, Laser scanners, Refractive index, LCDs, Microscopy, Microscopes, Brain

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Proceedings Article | 10 March 2015 Paper

Transmissive liquid crystal device correcting the spherical aberrations in laser scanning microscopy

Ayano Tanabe, Terumasa Hibi, Kenji Matsumoto, Masafumi Yokoyama, Makoto Kurihara, Sari Ipponjima, Nobuyuki Hashimoto, Tomomi Nemoto

Proceedings Volume 9335, 933502 (2015) https://doi.org/10.1117/12.2076342

KEYWORDS: Objectives, Monochromatic aberrations, Laser scanners, Glasses, Liquid crystals, Refractive index, Microscopy, Spatial resolution, Microscopes, Electrodes

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Proceedings Article | 28 July 2014 Paper

Birefringence Bragg Binary (3B) grating, quasi-Bragg grating and immersion gratings

Noboru Ebizuka, Shin-ya Morita, Yutaka Yamagata, Minoru Sasaki, Andorea Bianco, Ayano Tanabe, Nobuyuki Hashimoto, Yasuhiro Hirahara, Wako Aoki

Proceedings Volume 9151, 91515C (2014) https://doi.org/10.1117/12.2055045

KEYWORDS: Diffraction gratings, Diffraction, Binary data, Liquid crystals, Mirrors, Polarization, Germanium, Crystals, Silicon, Telescopes

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Proceedings Article | 17 October 2012 Paper

Unbalanced nulling interferometer with four-quadrant phase mask

Takuji Kobayashi, Jun Nishikawa, Yosuke Tanaka, Takashi Kurokawa, Ken Kashiwagi, Naoshi Murakami, Naoshi Baba, Nobuyuki Hashimoto

Proceedings Volume 8421, 84213D (2012) https://doi.org/10.1117/12.975179

KEYWORDS: Wavefronts, Adaptive optics, Interferometers, Exoplanets, Nulling interferometry, Picture Archiving and Communication System, Coronagraphy, Stars, Planets, Phase interferometry

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Proceedings Article | 11 February 2012 Paper

Observation of PDLCs by SHG laser scanning microscopy using a liquid crystal vector beam generator

Ayano Tanabe, Makoto Kurihara, Yuka Saito, Nobuyuki Hashimoto, Yuichi Kozawa, Shunichi Sato, Terumasa Hibi, Tomomi Nemoto

Proceedings Volume 8279, 82790L (2012) https://doi.org/10.1117/12.907076

KEYWORDS: Liquid crystals, Molecules, Polymers, Second-harmonic generation, Polarization, Microscopy, Refractive index, Laser scanners, Wave plates, Scanning electron microscopy

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Proceedings Article | 22 September 2011 Paper

Development of a strain visualization system for microstructures using single fluorescent molecule tracking on a three-dimensional orientation microscope

Shintaro Yoshida, Keisuke Yoshiki, Takahiro Namazu, Nozomu Araki, Mamoru Hashimoto, Makoto Kurihara, Nobuyuki Hashimoto, Shozo Inoue

Proceedings Volume 8134, 81340E (2011) https://doi.org/10.1117/12.894329

KEYWORDS: Polarization, Molecules, Microscopes, Microelectromechanical systems, Visualization, 3D microstructuring, Mirrors, Ultrasonics, Luminescence, Dysprosium

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Proceedings Article | 11 August 2010 Paper

Polarization-interferometric eight-octant phase-mask coronagraph using ferroelectric liquid crystal for exoplanet detection

Naoshi Murakami, Takeshi Inabe, Toshihiko Komatsu, Jun Nishikawa, Nobuyuki Hashimoto, Makoto Kurihara, Naoshi Baba, Motohide Tamura

Proceedings Volume 7731, 77314E (2010) https://doi.org/10.1117/12.856395

KEYWORDS: Coronagraphy, Manufacturing, Polarizers, Stars, Ferroelectric LCDs, Polarization, Optics manufacturing, Exoplanets, Photomasks, Exoplanetary science

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Proceedings Article | 3 February 2009 Paper

Liquid crystal quantized GRIN lens and its application to AF systems

Nobuyuki Hashimoto, Makoto Kurihara

Proceedings Volume 7232, 72320N (2009) https://doi.org/10.1117/12.808123

KEYWORDS: Liquid crystals, GRIN lenses, LCDs, Phase modulation, Glasses, Electrodes, Refractive index, Molecules, Atrial fibrillation, Optical components

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Proceedings Article | 15 September 2008 Paper

Remote counseling using HyperMirror quasi space-sharing system

Sayuri Hashimoto, Osamu Morikawa, Nobuyuki Hashimoto, Takanori Maesako

Proceedings Volume 7073, 707323 (2008) https://doi.org/10.1117/12.795113

KEYWORDS: Telecommunications, Video, Sensors, Visualization, Image transmission, Vibration control, Relays, Environmental sensing, Brain, Information security

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Proceedings Article | 12 July 2008 Paper

Laboratory experiments on the 8-octant phase-mask coronagraph

Naoshi Murakami, Ryosuke Uemura, Naoshi Baba, Hiroshi Shibuya, Jun Nishikawa, Lyu Abe, Motohide Tamura, Nobuyuki Hashimoto

Proceedings Volume 7010, 70101J (2008) https://doi.org/10.1117/12.788145

KEYWORDS: Coronagraphy, Liquid crystals, Stars, Manufacturing, Numerical simulations, Polarization, Exoplanets, Helium neon lasers, Modulation, Astronomy

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Proceedings Article | 24 September 2007 Paper

Tele-counseling and social-skill trainings using JGNII optical network and a mirror-interface system

Sayuri Hashimoto, Nobuyuki Hashimoto, Akira Onozawa, Eiichi Hosoya, Ikuo Harada, Junzo Okunaka

Proceedings Volume 6696, 66961M (2007) https://doi.org/10.1117/12.768863

KEYWORDS: Telecommunications, Video, Heart, Optical networks, Networks, Mirrors, Optical communications, Internet, Skin, Video compression

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Proceedings Article | 14 February 2007 Paper

A compact polarization converter to observe molecular orientation

Mamoru Hashimoto, Keisuke Yoshiki, Ryosuke Kanamaru, Nobuyuki Hashimoto, Tsutomu Araki

Proceedings Volume 6443, 64430L (2007) https://doi.org/10.1117/12.699852

KEYWORDS: Polarization, Liquid crystals, Electrodes, Spatial light modulators, Wave plates, Collagen, Microscopy, Microscopes, Molecules, Optical testing

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Proceedings Article | 19 October 2006 Paper

Liquid crystal optics for laser beam modulation

M. Kurihara, N. Hashimoto

Proceedings Volume 6374, 63740D (2006) https://doi.org/10.1117/12.689108

KEYWORDS: Liquid crystals, Prisms, GRIN lenses, Temperature metrology, Active optics, Modulation, LCDs, Diffraction, Molecules, Electrodes

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Proceedings Article | 16 January 2006 Paper

Internet-based remote counseling to support stress management: preventing interruptions to regular exercise in elderly people

Sayuri Hashimoto, Tsunestugu Munakata, Nobuyuki Hashimoto, Jyunzo Okunaka, Tatsuzo Koga

Proceedings Volume 6061, 60610T (2006) https://doi.org/10.1117/12.641667

KEYWORDS: Information technology, Video, Cognition, Internet, Optical networks, Tolerancing, Information visualization, Visualization, Data storage, Mirrors

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Proceedings Article | 12 October 2004 Paper

Two-channel polarization interferometric coronagraph to improve the detectability of extrasolar planets

Naoshi Murakami, Tasuku Maeda, Naoshi Baba, Tsuyoshi Ishigaki, Nobuyuki Hashimoto, Motohide Tamura

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.549548

KEYWORDS: Coronagraphy, Planets, Polarization, Exoplanets, Polarizers, Interferometry, Stars, Beam splitters, Lamps, Signal to noise ratio

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Proceedings Article | 30 April 2003 Paper

Development of a variable beam deflector with simple structure using liquid crystal devices

Shinya Sato, Nobuyuki Hashimoto

Proceedings Volume 5003, (2003) https://doi.org/10.1117/12.473880

KEYWORDS: Liquid crystals, LCDs, Phase modulation, Transmittance, Refractive index, Polarization, Wavefronts, Control systems, Molecules, Optical components

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Proceedings Article | 3 March 2003 Paper

Nulling stellar coronagraph using liquid-crystal device

Naoshi Murakami, Naoshi Baba, Tsuyoshi Ishigaki, Nobuyuki Hashimoto

Proceedings Volume 4860, (2003) https://doi.org/10.1117/12.457651

KEYWORDS: Polarization, Polarizers, Liquid crystals, Phase shifts, Coronagraphy, Light sources, Stars, Nulling interferometry, Molecules, Exoplanets

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Proceedings Article | 10 January 2002 Paper

Optical equalizer of a data storage system using liquid crystal super-resolution devices

Nobuyuki Hashimoto, Tomas Milster

Proceedings Volume 4342, (2002) https://doi.org/10.1117/12.453406

KEYWORDS: Super resolution, Polarization, Liquid crystals, LCDs, Modulation, Data storage, Modulators, Molecules, Diffraction, Signal detection

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Proceedings Article | 4 April 1994 Paper

Applications of high-resolution active-matrix liquid crystal spatial light modulators to parallel optical processing

Yuki Itoh, Chiyoko Hiraide, Kashiko Kodate, Kayo Ogawa, Nobuyuki Hashimoto, Shigeru Morokawa

Proceedings Volume 2175, (1994) https://doi.org/10.1117/12.172120

KEYWORDS: Spatial frequencies, Optical signal processing, Optical filters, Holograms, Wavelets, Polarization, Charge-coupled devices, Liquid crystals, Video, Zone plates

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SPIE Journal Paper | 1 April 1993

Real-time electroholographic system using liquid crystal television spatial light modulators

Nobuyuki Hashimoto, Shigeru Morokawa

JEI, Vol. 2, Issue 02, (April 1993) https://doi.org/10.1117/12.10.1117/12.136692

KEYWORDS: Holograms, 3D image reconstruction, Spatial frequencies, Holography, CCD cameras, Molecules, Liquid crystals, LCDs, Cameras, Electrodes

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Proceedings Article | 1 May 1992 Paper

Improved real-time holography system with LCDs

Nobuyuki Hashimoto, Kohichi Hoshino, Shigeru Morokawa

Proceedings Volume 1667, (1992) https://doi.org/10.1117/12.59614

KEYWORDS: Holography, LCDs, Spatial light modulators, Holograms, Video, CCD cameras, 3D image reconstruction, Fringe analysis, Spatial filters, Glasses

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Proceedings Article | 1 July 1991 Paper

Real-time holography using the high-resolution LCTV-SLM

Nobuyuki Hashimoto, Shigeru Morokawa, Kohei Kitamura

Proceedings Volume 1461, (1991) https://doi.org/10.1117/12.44740

KEYWORDS: Holography, Holograms, LCDs, Charge-coupled devices, 3D image reconstruction, Video, Liquid crystals, Spatial frequencies, Spatial filters, Imaging systems

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Showing 5 of 32 publications

Conference Committee Involvement (21)

Advances in Display Technologies XV

25 January 2025 | San Francisco, California, United States

High-Speed Biomedical Imaging and Spectroscopy X

25 January 2025 | San Francisco, California, United States

Advances in Display Technologies XIV

29 January 2024 | San Francisco, California, United States

High-Speed Biomedical Imaging and Spectroscopy IX

27 January 2024 | San Francisco, California, United States

Advances in Display Technologies XIII

30 January 2023 | San Francisco, California, United States

High-Speed Biomedical Imaging and Spectroscopy VIII

28 January 2023 | San Francisco, California, United States

Advances in Display Technologies XII

24 January 2022 | San Francisco, California, United States

High-Speed Biomedical Imaging and Spectroscopy VII

22 January 2022 | San Francisco, California, United States

Advances in Display Technologies XI

6 March 2021 | Online Only, California, United States

High-Speed Biomedical Imaging and Spectroscopy VI

6 March 2021 | Online Only, California, United States

Advances in Display Technologies X

5 February 2020 | San Francisco, California, United States

High-Speed Biomedical Imaging and Spectroscopy V

1 February 2020 | San Francisco, California, United States

Advances in Display Technologies IX

7 February 2019 | San Francisco, California, United States

Advances in Display Technologies VIII

31 January 2018 | San Francisco, California, United States

Advances in Display Technologies VII

2 February 2017 | San Francisco, California, United States

Advances in Display Technologies VI

18 February 2016 | San Francisco, California, United States

Advances in Display Technologies V

11 February 2015 | San Francisco, California, United States

Advances in Display Technologies IV

6 February 2014 | San Francisco, California, United States

Advances in Display Technologies III

7 February 2013 | San Francisco, California, United States

Advances in Display Technologies II

25 January 2012 | San Francisco, California, United States

Optomechatronic Actuators and Manipulation II

1 October 2006 | Boston, Massachusetts, United States

Showing 5 of 21 Conference Committees

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