Prof. Shoichi Kubodera Profile

Prof. Shoichi Kubodera

Professor at Soka Univ

SPIE Involvement:

Author

Publications (34)

Proceedings Article | 5 March 2022 Poster + Presentation + Paper

Characteristics of near-infrared transmitted loss of hetero-core fiber optic using ITO nano-particles in refractive index measurement

Michiko Nishiyama, Masahiro Mikami, Shoichi Kubodera, Kazuhiro Watanabe

Proceedings Volume 12008, 120080W (2022) https://doi.org/10.1117/12.2609674

KEYWORDS: Nanoparticles, Fiber optics sensors, Fiber optics, Sensors, Fiber optics tests, Absorption, Refractive index, Surface plasmons, Metals

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Proceedings Article | 5 March 2022 Poster + Presentation + Paper

Hetero-core fiber optic LSPR sensor based on TiO2 and Au island films for refractive index measurement

Koji Yuhashi, Jun-ichi Ida, Shoichi Kubodera, Kazuhiro Watanabe, Michiko Nishiyama

Proceedings Volume 12008, 120080V (2022) https://doi.org/10.1117/12.2609358

KEYWORDS: Gold, Fiber optics sensors, Sensors, Absorption, Refractive index, Fiber optics, Annealing, Thin films, Nanoparticles, Surface plasmons

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Proceedings Article | 3 January 2019 Paper

Observation of inner surface laser-induced periodic surface structures in a microhole produced in a glass optical fiber by varying femtosecond laser pulse number and energy

Daisuke Yano, Masahiko Shiraishi, Kazuhiro Watanabe, Shoichi Kubodera

Proceedings Volume 11042, 110420V (2019) https://doi.org/10.1117/12.2522444

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Proceedings Article | 16 May 2017 Paper

Evaluating inner surface roughness of inline/picoliter fiber optic spectrometer fabricated by an NUV femtosecond laser drilling

Masahiko Shiraishi, Shoichi Kubodera, Kazuhiro Watanabe

Proceedings Volume 10231, 102311H (2017) https://doi.org/10.1117/12.2265005

KEYWORDS: Surface roughness, Spectroscopy, Femtosecond phenomena, Fiber optics, Laser drilling, Glasses, Transmittance, Fiber optics sensors, Optical fibers, Optical spectroscopy, Silica, Particles, Thermal effects

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Proceedings Article | 13 January 2017 Paper

Observation of inner surface roughness in fused silica microholes with varying the number of femtosecond laser pulses

Masahiko Shiraishi, Kazuhiro Watanabe, Shoichi Kubodera

Proceedings Volume 10254, 1025419 (2017) https://doi.org/10.1117/12.2257347

KEYWORDS: Surface roughness, Silica, Femtosecond phenomena, Laser ablation, Objectives, Pulsed laser operation, Particles, Photography, Fiber optics sensors, Scanning electron microscopy

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Proceedings Article | 13 January 2017 Paper

Amplification of femtosecond pulses at 126 nm in optical field-induced plasma filamentation in Ar

Shoichi Kubodera, Kazuyuki Fujiyoshi, Masanori Kaku, Masahito Katto

Proceedings Volume 10254, 1025414 (2017) https://doi.org/10.1117/12.2256014

KEYWORDS: Plasma, Argon, Vacuum ultraviolet, Optical amplifiers, Femtosecond phenomena, Ions, Excimers, Plasma diagnostics, Ionization, UV optics

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Proceedings Article | 27 September 2013 Paper

Transmission imaging of sodium in the vacuum ultra-violet spectral range: new application for an intense VUV source

Hiroyuki Daido, Yoji Suzuki, Tetsuya Kawachi, Takeshi Fukuda, Toshio Nakagiri, Masanori Kaku, Shoichi Kubodera, Alexander Pirozhkov

Proceedings Volume 8849, 884908 (2013) https://doi.org/10.1117/12.2022938

KEYWORDS: Sodium, Vacuum ultraviolet, Magnesium fluoride, Transmittance, Lamps, Liquids, Ultraviolet radiation, Refractive index, Excimer lasers, Solids

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Proceedings Article | 30 January 2013 Paper

Amplification of ultrashort pulse vacuum ultraviolet coherent radiation in OFI Ar2* amplifier

M. Kaku, Y. Ezaki, M. Katto, S. Kubodera

Proceedings Volume 8677, 867712 (2013) https://doi.org/10.1117/12.2014879

KEYWORDS: Vacuum ultraviolet, Optical amplifiers, Plasma, Argon, Ultraviolet radiation, Laser systems engineering, Pulsed laser operation, Ions, Ultrafast phenomena, Excimer lasers

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Proceedings Article | 18 February 2011 Paper

Autocorrelation of femtosecond VUV pulses using multiphoton ionization

Masanori Kaku, Wataru Nagaya, Hironari Zushi, Masahito Katto, Shoichi Kubodera

Proceedings Volume 7915, 79150G (2011) https://doi.org/10.1117/12.872099

KEYWORDS: Argon, Ionization, Vacuum ultraviolet, Femtosecond phenomena, Ions, Chemical species, Pulsed laser operation, Absorption, Sapphire lasers, Ultrafast phenomena

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Proceedings Article | 16 November 2010 Paper

Vacuum ultraviolet argon excimer laser at 126 nm excited by a high intensity laser

Masanori Kaku, Shinya Harano, Masahito Katto, Shoichi Kubodera

Proceedings Volume 7751, 775113 (2010) https://doi.org/10.1117/12.880749

KEYWORDS: Vacuum ultraviolet, Argon, Plasmas, Excimers, Excimer lasers, Mirrors, Argon ion lasers, UV optics, Reflectors, Free space optics

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Proceedings Article | 16 November 2010 Paper

Novel analysis system using surface desorption stimulated by VUV photons from laser-produced plasma

Masahito Katto, Masanori Kaku, Shoichi Kubodera, Atushi Yokotani, Nobuyoshi Miyabayashi, Wataru Sasaki

Proceedings Volume 7751, 77511D (2010) https://doi.org/10.1117/12.880303

KEYWORDS: Vacuum ultraviolet, Photons, Excimers, Lamps, Plasma, Spectroscopy, Chemical analysis, Contamination, Organic materials, Argon

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Proceedings Article | 18 February 2010 Paper

Optical-field-induced-ionization Ar[sub]2[/sub][sup]*[/sup] excimer amplifier for intense femtosecond vacuum ultraviolet pulse generation

Masanori Kaku, Masahito Katto, Shoichi Kubodera

Proceedings Volume 7581, 75810A (2010) https://doi.org/10.1117/12.840573

KEYWORDS: Excimers, Vacuum ultraviolet, Argon, Optical resonators, Optical amplifiers, Plasma, Femtosecond phenomena, Excimer lasers, UV optics, Reflectors

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Proceedings Article | 22 April 2009 Paper

OFI argon excimer amplifier for intense subpicosecond VUV pulse generation

M. Kaku, S. Kubodera, K. Oda, M. Katto, A. Yokotani, N. Miyanaga, K. Mima

Proceedings Volume 7131, 71311C (2009) https://doi.org/10.1117/12.820060

KEYWORDS: Vacuum ultraviolet, Excimers, Plasma, Argon, Optical amplifiers, Reflectors, Excimer lasers, Mirrors, Laser systems engineering, Sapphire lasers

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Proceedings Article | 22 April 2009 Paper

Harmonics generation in VUV spectral region driven by a NIR Ti:sapphire laser in rare gases

Masahito Katto, Kazuyoshi Oda, Masanori Kaku, Shoichi Kubodera, Atsushi Yokotani, Noriaki Miyanaga, Kinioki Mima

Proceedings Volume 7131, 713118 (2009) https://doi.org/10.1117/12.817004

KEYWORDS: Vacuum ultraviolet, Xenon, Near infrared, Harmonic generation, Gas lasers, Gases, Excimers, Argon, Spectroscopy, Sapphire lasers

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Proceedings Article | 22 April 2009 Paper

EUV and debris characteristics of a laser-plasma tin-dioxide colloidal target

Shoichi Kubodera, Masanori Kaku, Shunsuke Touge, Masahito Katto

Proceedings Volume 7131, 71311O (2009) https://doi.org/10.1117/12.816882

KEYWORDS: Extreme ultraviolet, Tin, Plasma, Nanoparticles, Extreme ultraviolet lithography, Laser irradiation, Oxides, Pulsed laser operation, Excimers, Lamps

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Proceedings Article | 18 March 2009 Paper

Debris characteristics and mitigation of a laser plasma tin-contained liquid jet/droplet targets

Masanori Kaku, Shunsuke Touge, Masahito Katto, Shoichi Kubodera

Proceedings Volume 7271, 727132 (2009) https://doi.org/10.1117/12.813479

KEYWORDS: Tin, Extreme ultraviolet, Ions, Plasma, Pulsed laser operation, Silicon, Vacuum ultraviolet, Liquids, Laser irradiation, Extreme ultraviolet lithography

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Proceedings Article | 20 February 2009 Paper

OFI rare-gas excimer amplifier for high-intensity VUV pulse generation

Masahito Katto, Masanori Kaku, Kazuyoshi Oda, Tadashi Kamikihara, Atsushi Yokotani, Shoichi Kubodera, Noriaki Miyanaga, Kunioki Mima

Proceedings Volume 7196, 71960L (2009) https://doi.org/10.1117/12.807339

KEYWORDS: Vacuum ultraviolet, Plasma, Argon, Excimers, Optical amplifiers, Pulsed laser operation, Mirrors, Xenon, Reflectors, Harmonic generation

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Proceedings Article | 21 March 2008 Paper

EUV and debris characteristics of a laser-plasma tin dioxide nano-particle colloidal jet target

Masanori Kaku, Sumihiro Suetake, Yusuke Senba, Masahito Katto, Shoichi Kubodera

Proceedings Volume 6921, 69212Y (2008) https://doi.org/10.1117/12.771542

KEYWORDS: Tin, Vacuum ultraviolet, Extreme ultraviolet, Laser irradiation, Silicon, Plasma, Semiconductor lasers, Pulsed laser operation, Laser energy, X-rays

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Proceedings Article | 21 February 2008 Paper

High-intensity subpicosecond vacuum ultraviolet laser system

Shoichi Kubodera, Masanori Kaku, Yuta Taniguchi, Masahito Katto, Atsushi Yokotani, Noriaki Miyanaga, Kunioki Mima

Proceedings Volume 6874, 68740L (2008) https://doi.org/10.1117/12.760351

KEYWORDS: Vacuum ultraviolet, Plasma, Optical amplifiers, Argon, Xenon, Infrared lasers, Ionization, Laser development, Infrared radiation, Krypton

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Proceedings Article | 26 April 2007 Paper

Enhancement of extreme ultraviolet emission from a lithium plasma by use of dual laser pulses

Takeshi Higashiguchi, Keita Kawasaki, Yusuke Senba, Sumihiro Suetake, Masahito Katto, Shoichi Kubodera

Proceedings Volume 6346, 63462R (2007) https://doi.org/10.1117/12.739115

KEYWORDS: Extreme ultraviolet, Plasma, Lithium, Pulsed laser operation, Ions, Coded apertures, Solids, Mirrors, Xenon, Tin

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Proceedings Article | 26 April 2007 Paper

Low-debris efficient laser-produced plasma extreme ultraviolet source by use of a regenerative liquid microtarget containing tin nanoparticles

Takeshi Higashiguchi, Naoto Dojyo, Yusuke Senba, Sumihiro Suetake, Masahito Katto, Shoichi Kubodera

Proceedings Volume 6346, 63460S (2007) https://doi.org/10.1117/12.737382

KEYWORDS: Extreme ultraviolet, Plasma, Pulsed laser operation, Tin, Mirrors, Liquids, Ions, Reflectivity, Nanoparticles, Silicon

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Proceedings Article | 26 April 2007 Paper

Pulsed laser deposition for polycrystalline hydroxyapatite coatings

Masahito Katto, Kenzo Ishibashi, Atsushi Yokotani, Takeshi Higashiguchi, Shoichi Kubodera, Kou Kurosawa, Takeyoshi Nakayama, Hirotaka Katayama, Masayuki Fujita, Nobuyuki Abe, Masahiro Tsukamoto

Proceedings Volume 6346, 63463E (2007) https://doi.org/10.1117/12.739347

KEYWORDS: Excimer lasers, Crystals, Ceramics, Titanium, Ions, Particles, Pulsed laser deposition, Laser ablation, Laser crystals, Scanning electron microscopy

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Proceedings Article | 26 April 2007 Paper

Vacuum ultraviolet argon excimer laser initiated by optical-field-induced ionization electrons

Shoichi Kubodera, Yuta Taniguchi, Takeshi Higashiguchi, Masahito Katto

Proceedings Volume 6346, 63460R (2007) https://doi.org/10.1117/12.737381

KEYWORDS: Vacuum ultraviolet, Argon, Plasma, Mirrors, Excimer lasers, Argon ion lasers, Electrons, Femtosecond phenomena, Excimers, UV optics

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Proceedings Article | 21 March 2007 Paper

Debris characteristics from a colloidal microjet target containing tin dioxide nano-particles

Takeshi Higashiguchi, Sumihiro Suetake, Yusuke Senba, Yusuke Sato, Akira Hosotani, Yukari Takahashi, Shoichi Kubodera

Proceedings Volume 6517, 65173D (2007) https://doi.org/10.1117/12.711983

KEYWORDS: Ions, Extreme ultraviolet, Tin, Pulsed laser operation, Plasma, Silicon, Liquids, Mirrors, Lithium, Laser energy

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Proceedings Article | 14 February 2007 Paper

Subpicosecond vacuum ultraviolet laser system for advanced materials processing

Shoichi Kubodera, Yuta Taniguchi, Akira Hosotani, Masahito Katto, Atsushi Yokotani, Noriaki Miyanaga, Kunioki Mima

Proceedings Volume 6452, 645216 (2007) https://doi.org/10.1117/12.697133

KEYWORDS: Vacuum ultraviolet, Argon, Excimers, Lamps, Mirrors, Silicon, Optical amplifiers, Plasma, Laser systems engineering, Laser processing

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Proceedings Article | 24 March 2006 Paper

Enhancement of conversion efficiency of extreme ultraviolet radiation from a liquid aqueous solution microjet target by use of dual laser pulses

Takeshi Higashiguchi, Naoto Dojyo, Masaya Hamada, Keita Kawasaki, Wataru Sasaki, Shoichi Kubodera

Proceedings Volume 6151, 615145 (2006) https://doi.org/10.1117/12.659162

KEYWORDS: Extreme ultraviolet, Pulsed laser operation, Plasma, Tin, Ions, Mirrors, Liquids, Reflectivity, Silicon, Laser energy

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Proceedings Article | 23 March 2005 Paper

Vacuum ultraviolet argon excimer laser initiated by high-intensity laser-produced electrons

Shoichi Kubodera, Yusuke Morita, Takeshi Higashiguchi, Chirag Rajyaguru, Wataru Sasaki

Proceedings Volume 5777, (2005) https://doi.org/10.1117/12.611130

KEYWORDS: Argon, Excimer lasers, Vacuum ultraviolet, Mirrors, Plasma, Electrons, Excimers, Argon ion lasers, Fiber lasers, Ionization

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Proceedings Article | 23 March 2005 Paper

Enhancement of EUV emission from a liquid microjet target by use of dual laser pulses

Takeshi Higashiguchi, Chirag Rajyaguru, Masato Koga, Keita Kawasaki, Wataru Sasaki, Shoichi Kubodera, Takashi Kikuchi, Noboru Yugami, Shigeo Kawata, Alexander Andreev

Proceedings Volume 5777, (2005) https://doi.org/10.1117/12.611202

KEYWORDS: Extreme ultraviolet, Plasma, Pulsed laser operation, Liquids, Picosecond phenomena, Electronics engineering, Extreme ultraviolet lithography, Mirrors, Laser energy, Oxygen

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Proceedings Article | 7 January 2004 Paper

Output energy and conversion efficiency of extreme ultraviolet radiation from rare gas cryogenic targets

Takeshi Higashiguchi, Takahiro Hirata, Masato Koga, Chirag Rajyaguru, Wataru Sasaki, Shoichi Kubodera

Proceedings Volume 5196, (2004) https://doi.org/10.1117/12.509448

KEYWORDS: Extreme ultraviolet, Cryogenics, Xenon, Plasma, Ions, Pulsed laser operation, Krypton, Energy efficiency, X-rays, Argon

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Proceedings Article | 10 November 2003 Paper

Oscillation characteristics of a discharge pumped VUV Kr excimer laser

Takahiro Shirai, Takeshi Higashiguchi, Shoichi Kubodera, Wataru Sasaki, Junji Kawanaka, Tatsushi Igarashi

Proceedings Volume 5120, (2003) https://doi.org/10.1117/12.515513

KEYWORDS: Electrodes, Vacuum ultraviolet, Krypton, Excimers, Excimer lasers, Beam shaping, Reflectors, Gas lasers, Pulsed laser operation, Feedback signals

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