Prof. Yasuhiko Shimotsuma Profile

Prof. Yasuhiko Shimotsuma

Associate Professor at Kyoto Univ Graduate School of Engg

SPIE Involvement:

Author

Publications (27)

Proceedings Article | 12 March 2024 Presentation + Paper

Thermal stability of nanogratings in oxide glasses: a route to overcome silica

Maxime Cavillon, Qiong Xie, Imane Ktafi, Jing Kong, Julien Ari, Bertrand Poumellec, Yasuhiko Shimotsuma, Thomas Hawkins, John Ballato, Matthieu Lancry

Proceedings Volume 12875, 128750C (2024) https://doi.org/10.1117/12.2691346

KEYWORDS: Glasses, Thermal stability, Silica, Viscosity, Oxides, Temperature metrology, Optical sensing, Optical components, Femtosecond phenomena

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Proceedings Article | 22 February 2018 Presentation + Paper

Photoinduced functional materials by femtosecond laser direct writing

Yasuhiko Shimotsuma, Yuta Nakanishi, Masahiro Shimizu, Masaaki Sakakura, Kiyotaka Miura

Proceedings Volume 10536, 105361U (2018) https://doi.org/10.1117/12.2286799

KEYWORDS: Silicon, Crystals, Polarization, Glasses, Refractive index, Femtosecond phenomena, Picosecond phenomena, Nanostructures

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Proceedings Article | 19 February 2018 Paper

Formation mechanism of self-assembled polarization-dependent periodic nanostructures in β-Ga2O3

Y. Nakanishi, Y. Shimotsuma, M. Sakakura, M. Shimizu, K. Miura

Proceedings Volume 10520, 105201J (2018) https://doi.org/10.1117/12.2288276

KEYWORDS: Crystals, Nanostructures, Femtosecond phenomena, Electrons, Laser crystals, Polarization, Silicon, Semiconductors, Birefringence, Crystallography

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Proceedings Article | 2 January 2018 Paper

Development of functional materials by using ultrafast laser pulses

Y. Shimotsuma, M. Sakakura, K. Miura

Proceedings Volume 10456, 104563A (2018) https://doi.org/10.1117/12.2282426

KEYWORDS: Glasses, Nanostructures, Femtosecond phenomena, Oxygen, Silicate glass, Birefringence, Crystals, Semiconductors, Ions, Laser processing

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Proceedings Article | 22 July 2016 Paper

Synthesis of fluorescent nanocarbons by femtosecond laser induced plasma in liquid

Naoki Agatsuma, Yusei Fujimatsu, Yasuhiko Shimotsuma, Masaaki Sakakura, Kiyotaka Miura

Proceedings Volume 9983, 99831C (2016) https://doi.org/10.1117/12.2235727

KEYWORDS: Femtosecond phenomena, Liquids, Diamond, Carbon, Nanoparticles, Molecules, Picosecond phenomena, Luminescence, Bioalcohols, Nitrogen

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Proceedings Article | 22 July 2016 Paper

Ultrashort pulse laser slicing of semiconductor crystal

Eunho Kim, Yasuhiko Shimotsuma, Masaaki Sakakura, Kiyotaka Miura

Proceedings Volume 9983, 99831B (2016) https://doi.org/10.1117/12.2235146

KEYWORDS: Silicon carbide, Crystals, Femtosecond phenomena, Ultrafast phenomena, Semiconductor lasers, Laser crystals, Pulsed laser operation, Crystals, Pulsed laser operation, Semiconducting wafers, Picosecond phenomena, Laser irradiation

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Proceedings Article | 9 March 2016 Paper

Ejection of glass melts and generation of nanofibers from the back surface of a glass plate by pulsed UV laser irradiation

Sho Itoh, Masaaki Sakakura, Yasuhiko Shimotsuma, Kiyotaka Miura

Proceedings Volume 9737, 973708 (2016) https://doi.org/10.1117/12.2208983

KEYWORDS: Glasses, Nanofibers, Ultraviolet radiation, Laser irradiation, Nanolithography, Pulsed laser operation, Laser drilling, Nanostructures, High speed cameras, Laser beam propagation, Scanning electron microscopy, Optical fibers

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Proceedings Article | 12 March 2015 Paper

Study on generation process of nanofibers from back surface of thin glass substrate using pulsed UV 355nm laser

Sho Itoh, Masaaki Sakakura, Yasuhiko Shimotsuma, Kiyotaka Miura

Proceedings Volume 9352, 93520M (2015) https://doi.org/10.1117/12.2079266

KEYWORDS: Nanofibers, Glasses, Pulsed laser operation, Ultraviolet radiation, Carbon dioxide lasers, CCD cameras, Biomedical optics, Laser processing, Optical filters, High speed cameras

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Proceedings Article | 4 March 2015 Paper

Modification of flow of glass melt and elemental distributions by parallel irradiation with femtosecond laser pulses

Masaaki Sakakura, Torataro Kurita, Kouhei Yoshimura, Naoaki Fukuda, Yasuhiko Shimotsuma, Kiyotaka Miura

Proceedings Volume 9350, 935013 (2015) https://doi.org/10.1117/12.2078610

KEYWORDS: Glasses, Femtosecond phenomena, Laser irradiation, Laser beam propagation, Diffusion, Objectives, CCD cameras, Computer generated holography, Refractive index, Convection

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Proceedings Article | 4 March 2015 Paper

The effect of femtosecond laser processing conditions on the properties of a polarization imaging filter inside a silica glass

Yuya Yamada, Takafumi Ohfuchi, Masaaki Sakakura, Yasuhiko Shimotsuma, Naoaki Fukuda, Kiyotaka Miura, Toshio Takiya

Proceedings Volume 9350, 93501A (2015) https://doi.org/10.1117/12.2080706

KEYWORDS: Polarization, Optical filters, Transmittance, Image filtering, Glasses, Silica, Femtosecond phenomena, Birefringence, Polarizers, Refractive index

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Proceedings Article | 6 March 2014 Paper

Dynamics of interference of femtosecond laser-induced stress waves and crack formation inside a LiF single crystal

Masaaki Sakakura, Naoaki Fukuda, Yasuhiko Shimotsuma, Kiyotaka Miura

Proceedings Volume 8967, 89670C (2014) https://doi.org/10.1117/12.2036866

KEYWORDS: Crystals, Laser induced fluorescence, Femtosecond phenomena, Picosecond phenomena, Laser crystals, Modulation, Birefringence, Spatial light modulators, Laser irradiation, Wave propagation

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Proceedings Article | 13 March 2013 Paper

Hologram design for holographic laser machining inside transparent materials

Masaaki Sakakura, Naoaki Fukua, Yasuhiko Shimotsuma, Kazuyuki Hirao, Kiyotaka Miura

Proceedings Volume 8607, 86070V (2013) https://doi.org/10.1117/12.2003829

KEYWORDS: Holograms, Waveguides, Spatial light modulators, Distortion, Holography, Laser processing, Optical design, Glasses, Optical simulations, Fourier transforms

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Proceedings Article | 4 December 2012 Paper

Dynamics of fracture inside a single crystal induced by a focused femtosecond laser pulse

Masaaki Sakakura, Takaya Tochio, Yuki Ishiguro, Miki Nakabayashi, Yasuhiko Shimotsuma, Kazuyuki Hirao, Kiyotaka Miura

Proceedings Volume 8530, 853003 (2012) https://doi.org/10.1117/12.976339

KEYWORDS: Crystals, Laser crystals, Femtosecond phenomena, Birefringence, Laser induced fluorescence, Wave propagation, Picosecond phenomena, Pulsed laser operation, CCD cameras, Statistical analysis

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Proceedings Article | 18 February 2012 Paper

Control of element distribution in glass with femtosecond laser

Masahiro Shimizu, Masaaki Sakakura, Masayuki Nishi, Yasuhiko Shimotsuma, Kazuyuki Hirao, Kiyotaka Miura

Proceedings Volume 8244, 82440O (2012) https://doi.org/10.1117/12.906644

KEYWORDS: Glasses, Femtosecond phenomena, Diffusion, Calcium, Silicon, Laser irradiation, Computer simulations, Chemical elements, Crystals, Silicate glass

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Proceedings Article | 16 February 2012 Paper

Control of material properties by parallel laser irradiations at multiple laser spots using a spatial light modulator

Masaaki Sakakura, Takaya Tochio, Masahiro Shimizu, Naomi Yasuda, Masatoshi Ohnishi, Kiyotaka Miura, Yasuhiko Shimotsuma, Kazuyuki Hirao

Proceedings Volume 8243, 824310 (2012) https://doi.org/10.1117/12.912752

KEYWORDS: Glasses, Laser processing, Spatial light modulators, Femtosecond phenomena, Crystals, Laser crystals, Laser systems engineering, Control systems, Modulation, Chemical elements

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Proceedings Article | 16 February 2012 Paper

Fabrication of photo-induced microstructure embedded inside ZnO crystal

Yuichiro Ishikawa, Yasuhiko Shimotsuma, Akio Kaneta, Masaaki Sakakura, Masayuki Nishi, Kiyotaka Miura, Kazuyuki Hirao, Yoichi Kawakami

Proceedings Volume 8243, 82430N (2012) https://doi.org/10.1117/12.908190

KEYWORDS: Zinc oxide, Crystals, Femtosecond phenomena, Semiconductors, Pulsed laser operation, Plasma, Oxygen, Silicon, Laser irradiation, Laser crystals

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Proceedings Article | 16 February 2012 Paper

Laser-induced transient stress distribution inside a single crystal by time-resolved birefringence imaging

Takaya Tochio, Masaaki Sakakura, Shingo Kanehira, Yasuhiko Shimotsuma, Kiyotaka Miura, Kazuyuki Hirao

Proceedings Volume 8243, 82430E (2012) https://doi.org/10.1117/12.908186

KEYWORDS: Crystals, Laser crystals, Femtosecond phenomena, Glasses, Birefringence, Polarization, Pulsed laser operation, Laser induced fluorescence, Computer simulations, Laser development

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Proceedings Article | 28 February 2011 Paper

Localized phase separation inside glass by femtosecond laser-induced elemental migration

Masahiro Shimizu, Kiyotaka Miura, Masaaki Sakakura, Masayuki Nishi, Yasuhiko Shimotsuma, Shingo Kanehira, Kazuyuki Hirao

Proceedings Volume 7996, 79960Q (2011) https://doi.org/10.1117/12.887428

KEYWORDS: Glasses, Femtosecond phenomena, Raman spectroscopy, Laser irradiation, Heat treatments, Confocal microscopy, Polishing, Laser glasses, Surface finishing, Etching

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Proceedings Article | 22 February 2011 Paper

Three-dimensional structuring inside transparent materials by a phase modulated fs laser beam with a LCOS-SLM

Masaaki Sakakura, Kiyotaka Miura, Tsutomu Sawano, Yasuhiko Shimotsuma, Kazuyuki Hirao

Proceedings Volume 7920, 792010 (2011) https://doi.org/10.1117/12.881190

KEYWORDS: Spatial light modulators, Laser processing, Glasses, Computer generated holography, Femtosecond phenomena, Waveguides, Modulation, Laser systems engineering, Refractive index, 3D acquisition

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Proceedings Article | 2 March 2010 Paper

New phenomena in interaction of intense ultrashort light pulses with transparent materials: from 3D self-assembled nanostructures to quill writing and nonreciprocal photosensitivity

Peter Kazansky, Martynas Beresna, Yasuhiko Shimotsuma, Kazuyuki Hirao, Yuri Svirko

Proceedings Volume 7600, 760017 (2010) https://doi.org/10.1117/12.845780

KEYWORDS: Crystals, Laser crystals, Glasses, Birefringence, Femtosecond phenomena, Polarization, Plasma, Pulsed laser operation, Laser beam propagation, Lithium niobate

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Proceedings Article | 15 January 2008 Paper

Three-dimensional nanomodification with ultrafast pulse laser

Y. Shimotsuma, M. Sakakura, M. Shimizu, K. Miura, P. Kazansky, K. Hirao

Proceedings Volume 6985, 698503 (2008) https://doi.org/10.1117/12.786938

KEYWORDS: Femtosecond phenomena, Copper, Glasses, Diamond, Terahertz radiation, Plasma, Pulsed laser operation, Photonic crystals, Polarization, Nanowires

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Proceedings Article | 15 January 2008 Paper

Dynamics of bulk modification inside glass by femtosecond laser

Masaaki Sakakura, Masahide Terazima, Kiyotaka Miura, Yasuhiko Shimotsuma, Kazuyuki Hirao

Proceedings Volume 6985, 698509 (2008) https://doi.org/10.1117/12.786951

KEYWORDS: Refractive index, Laser beam diagnostics, Femtosecond phenomena, Glasses, Wave propagation, Picosecond phenomena, Pulsed laser operation, Wavefronts, Soda-lime glass, CCD cameras

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Proceedings Article | 13 March 2007 Paper

Formation of silicon structures in silicate glass by femtosecond laser

Y. Shimotsuma, K. Miura, M. Sakakura, S. Kanehira, K. Hirao

Proceedings Volume 6458, 64580L (2007) https://doi.org/10.1117/12.707579

KEYWORDS: Glasses, Plasma, Femtosecond phenomena, Silicon, Oxygen, Nanostructures, Surface finishing, Silica, Crystals, Polishing

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Proceedings Article | 22 December 2006 Paper

Three-dimensional deposition of silicon from silicate glass with dispersed metallic aluminum by a femtosecond laser

K. Miura, Y. Shimotsuma, M. Sakakura, S. Kanehira, M. Hamabe, K. Hirao

Proceedings Volume 6413, 64130K (2006) https://doi.org/10.1117/12.695925

KEYWORDS: Silicon, Glasses, Femtosecond phenomena, Aluminum, Heat treatments, Laser irradiation, Refractive index, Semiconductor lasers, Ions, Particles

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