Prof. Katsuhiro Ishii Profile

Prof. Katsuhiro Ishii

Professor at Graduate School for the Creation of New Photonics Industries

SPIE Involvement:

Author

Publications (26)

Proceedings Article | 11 August 2023 Poster + Paper

Experimental observation of distributed pulse wave velocity with a noncontact portable shearing-speckle interferometer

N. Hayashi, R. Hanayama, K. Ishii

Proceedings Volume 12622, 1262211 (2023) https://doi.org/10.1117/12.2672585

KEYWORDS: Blood circulation, Laser interferometry, Shearing interferometers, Medicine, Portability, Vibration, Velocity measurements, Prisms, Doppler effect, Measurement devices

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Proceedings Article | 5 March 2021 Poster + Presentation

Simplified detection technique of compressed image using CMOS area sensor

Munenori Takumi, Keisuke Uchida, Katsuhiro Ishii, Ken-ichi Kitayama

Proceedings Volume 11703, 117031N (2021) https://doi.org/10.1117/12.2577405

KEYWORDS: Sensors, Picosecond phenomena, Image sensors, Image quality, Imaging systems, Image compression, Image acquisition, Digital micromirror devices, Data acquisition, Computer programming

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Proceedings Article | 21 June 2019 Paper

Highly repetitive low-coherence interferometry with time-stretch technique

Masaharu Hoshikawa, Katsuhiro Ishii, Takeshi Makino, Takahiro Hashimoto, Hideaki Furukawa, Naoya Wada

Proceedings Volume 11056, 1105644 (2019) https://doi.org/10.1117/12.2525939

KEYWORDS: Pulsed laser operation, Interferometry, Oscilloscopes, Picosecond phenomena, Interferometers, Optical amplifiers, Fourier transforms, Fiber lasers, Semiconductor lasers

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Proceedings Article | 28 July 2017 Paper

Development of three-dimensional tracking system using astigmatic lens method for microscopes

Hiroki Kibata, Katsuhiro Ishii

Proceedings Volume 10414, 104140X (2017) https://doi.org/10.1117/12.2286123

KEYWORDS: Imaging systems, 3D image processing, Microscopes, Microscopy, Metrology

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Proceedings Article | 22 February 2017 Presentation + Paper

Velocity measurement using frequency domain interferometer and chirped pulse laser

K. Ishii, Y. Nishimura, Y. Mori, R. Hanayama, Y. Kitagawa, T. Sekine, N. Sato, T. Kurita, T. Kawashima, A. Sunahara, Y. Sentoku, E. Miura, A. Iwamoto, H. Sakagami

Proceedings Volume 10089, 100890H (2017) https://doi.org/10.1117/12.2255704

KEYWORDS: Velocity measurements, Interferometers, Pulsed laser operation, Picosecond phenomena, Imaging spectroscopy, Doppler effect, Spectroscopy, Reflectors, Laser irradiation, Fringe analysis, Mirrors, Laser applications

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Proceedings Article | 6 August 2014 Paper

High-sensitivity low-coherence dynamic light scattering and particle sizing for nanoparticles (II): SM-fiber probe system applied to dense particle suspensions

Sohichiro Nakamura, Yuki Sato, Katsuhiro Ishii

Proceedings Volume 9232, 92320I (2014) https://doi.org/10.1117/12.2063641

KEYWORDS: Particles, Light scattering, Dynamic light scattering, Diffusion, Nanoparticles, Signal detection, Multiple scattering, Particle sizing, Collimators, Sensors

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Proceedings Article | 6 August 2014 Paper

Measurement of dispersion of nanoparticles in a dense suspension by high-sensitivity low-coherence dynamic light scattering

Katsuhiro Ishii, Sohichiro Nakamura, Yuki Sato

Proceedings Volume 9232, 92320J (2014) https://doi.org/10.1117/12.2063006

KEYWORDS: Particles, Light scattering, Scattering, Dynamic light scattering, Multiple scattering, Transmission electron microscopy, Signal detection, Light sources, Laser scattering, Diffusion

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Proceedings Article | 14 June 2013 Paper

Voxel-based Monte Carlo simulation for light propagation in inhomogeneous turbid media

Katsuhiro Ishii, Tatsuhiro Okada, Izumi Nishidate, Toshiaki Iwai

Proceedings Volume 8799, 87990S (2013) https://doi.org/10.1117/12.2032484

KEYWORDS: Scattering, Light scattering, Monte Carlo methods, Computer simulations, 3D image reconstruction, 3D image processing, Multiple scattering, Photons, Mass attenuation coefficient, Biological research

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Proceedings Article | 13 May 2013 Paper

Development of a zero-method interferometer by means of dynamic generation of reference wave front

Ryohei Hanayama, Katsuhiro Ishii

Proceedings Volume 8788, 87882S (2013) https://doi.org/10.1117/12.2021028

KEYWORDS: Spatial light modulators, Interferometers, Wavefronts, Interferometry, Phase shifts, Mirrors, Imaging devices, Phase shift keying, Beam splitters, Tunable lasers

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Proceedings Article | 27 May 2011 Paper

High-sensitivity low-coherence dynamic light scattering and particle sizing for nanoparticles

Katsuhiro Ishii, Sohichiro Nakamura, Yuki Sato

Proceedings Volume 8082, 80821Z (2011) https://doi.org/10.1117/12.889305

KEYWORDS: Particles, Light scattering, Transmission electron microscopy, Multiple scattering, Dynamic light scattering, Heterodyning, Particle sizing, Mach-Zehnder interferometers, Confocal microscopy, Nanoparticles

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Proceedings Article | 10 July 2009 Paper

Numerical analysis on propagation of light in turbid media using path-length assigned Monte Carlo simulation

Katsuhiro Ishii, Izumi Nishidate, Toshiaki Iwai

Proceedings Volume 7369, 73691A (2009) https://doi.org/10.1117/12.831657

KEYWORDS: Light scattering, Scattering, Monte Carlo methods, Computer simulations, Particles, Multiple scattering, Scattering media, Numerical analysis, Optical coherence tomography, Tissues

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Proceedings Article | 17 June 2009 Paper

Small lens testing method using phase shift shearing interferometer

Ryohei Hanayama, Katsuhiro Ishii, Kiyofumi Matsuda

Proceedings Volume 7389, 73890Y (2009) https://doi.org/10.1117/12.827723

KEYWORDS: Shearing interferometers, Wavefronts, Phase shifts, Interferometers, Testing and analysis, Objectives, Optical fibers, Interferometry, Optical components, Reflection

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Proceedings Article | 19 November 2003 Paper

Spectrum analysis of dynamic scattering light measured via a low-coherence interferometer

Katsuhiro Ishii, Toshiaki Iwai

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.530035

KEYWORDS: Light scattering, Dynamic light scattering, Light, Interferometers, Scattering, Light sources, Optical testing, Scatter measurement, Spectrum analysis, Laser scattering

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Proceedings Article | 30 October 2001 Paper

Optical fabrications of ordered polystyrene particles using radiation pressure and self-organization

Toshiaki Iwai, Katsuhiro Ishii, Kuon Inoue

Proceedings Volume 4598, (2001) https://doi.org/10.1117/12.447096

KEYWORDS: Particles, Crystals, Photonic crystals, Glasses, Capillaries, Objectives, Spatial frequencies, Optical fabrication, Metals, Crystallography

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Proceedings Article | 30 October 2001 Paper

Numerical simulation of ordered polystyrene particles using radiation pressure and self-organization

Katsuhiro Ishii, Toshiaki Iwai, Kuon Inoue

Proceedings Volume 4598, (2001) https://doi.org/10.1117/12.447094

KEYWORDS: Particles, Monte Carlo methods, Photonic crystals, Crystals, Latex, Dielectrics, Optical simulations, Numerical simulations, Photonic crystal devices, Manufacturing

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Proceedings Article | 13 June 2001 Paper

Simultaneous viscometry and particle sizing on the basis of dynamic light scattering

Katsuhiro Ishii, Toshiaki Iwai, Shigeo Wada, Masaoki Miyakoshi

Proceedings Volume 4263, (2001) https://doi.org/10.1117/12.429329

KEYWORDS: Particles, Light scattering, Blood, Dynamic light scattering, Particle sizing, Speckle, Fluid dynamics, Diffusion, Erbium, Solids

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Proceedings Article | 8 May 2001 Paper

Spatial anisotropy and polarization in enhanced backscattering of light using double-scattering approximation

Katsuhiro Ishii, Toshiaki Iwai

Proceedings Volume 4416, (2001) https://doi.org/10.1117/12.427009

KEYWORDS: Polarization, Backscatter, Particles, Light scattering, Anisotropy, Fractal analysis, Scattering, Rayleigh scattering, Jones vectors, Analytical research

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Proceedings Article | 17 May 1999 Paper

Monitoring of the cluster growth in the colloidal suspension using a diffusive-wave spectroscopic technique

Katsuhiro Ishii, Toshiaki Iwai

Proceedings Volume 3599, (1999) https://doi.org/10.1117/12.348365

KEYWORDS: Particles, Light scattering, Scattering, Multiple scattering, Spectroscopy, Dynamic light scattering, Diffusion, Fractal analysis, Latex, Blood

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Proceedings Article | 7 May 1999 Paper

Optical sensing of fractal aggregates of particles using backscattering enhancement

Katsuhiro Ishii, Toshiaki Iwai

Proceedings Volume 3740, (1999) https://doi.org/10.1117/12.347741

KEYWORDS: Particles, Fractal analysis, Backscatter, Absorption, Optical sensing, Latex, Glasses, Light scattering, CCD cameras, Scattering

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Proceedings Article | 29 April 1999 Paper

Particle sizing based on enhanced backscatterings of light from dense disordered media

Toshiaki Iwai, Katsuhiro Ishii, Toshimitsu Asakura

Proceedings Volume 3729, (1999) https://doi.org/10.1117/12.346798

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SPIE Journal Paper | 1 April 1999 Open Access

Correlation properties of light backscattered multiply from fractal aggregates of particles under Brownian motion

Katsuhiro Ishii, Toshiaki Iwai, Toshimitsu Asakura

JBO, Vol. 4, Issue 02, (April 1999) https://doi.org/10.1117/12.10.1117/1.429913

KEYWORDS: Light scattering, Fractal analysis, Absorption, Particles, Scattering, Backscatter, Monte Carlo methods, Retroreflectors, Diffusion, Spectroscopy

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Proceedings Article | 19 June 1998 Paper

Coherent backscattering of light from a polydisperse random medium as a model of fractal aggregations of particles

Toshiaki Iwai, Katsuhiro Ishii, Toshimitsu Asakura

Proceedings Volume 3252, (1998) https://doi.org/10.1117/12.311880

KEYWORDS: Particles, Scattering, Light scattering, Backscatter, Monte Carlo methods, Fractal analysis, Polarization, Diffusion, Rayleigh scattering, Chemical analysis

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Proceedings Article | 18 August 1997 Paper

Monte Carlo simulations of the polarization anisotropy in light backscattered from a fractal aggregation

Katsuhiro Ishii, Toshiaki Iwai, Toshimitsu Asakura

Proceedings Volume 2979, (1997) https://doi.org/10.1117/12.280292

KEYWORDS: Scattering, Light scattering, Fractal analysis, Polarization, Particles, Monte Carlo methods, Absorption, Anisotropy, Rayleigh scattering, Electromagnetic scattering theory

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Proceedings Article | 2 May 1997 Paper

Space-time statistics of coherently backscattered light from fractal and nonfractal random media with absorption

Toshiaki Iwai, Katsuhiro Ishii, Toshimitsu Asakura

Proceedings Volume 2982, (1997) https://doi.org/10.1117/12.273604

KEYWORDS: Light scattering, Fractal analysis, Absorption, Scattering, Particles, Backscatter, Monte Carlo methods, Polarization, Diffusion, Rayleigh scattering

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