Prof. Atsushi Seki Profile

Prof. Atsushi Seki

at Soka Univ

SPIE Involvement:

Author

Publications (12)

Proceedings Article | 18 April 2016 Paper

Optical fiber oxygen sensor using layer-by-layer stacked porous composite membranes

Sayuri Ban, Ai Hosoki, Michiko Nishiyama, Atsushi Seki, Kazuhiro Watanabe

Proceedings Volume 9754, 97540F (2016) https://doi.org/10.1117/12.2212137

KEYWORDS: Oxygen, Sensors, Ruthenium, Optical fibers, Composites, Quenching (fluorescence), Phosphorescence, Polymers, Glasses, Luminescence

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Proceedings Article | 1 March 2016 Paper

Fabrication of scattering source for an optical fiber sensor using femtosecond laser internal processing

Naoki Chinen, Masahiko Shiraishi, Kenji Goya, Atsushi Seki, Kazuhiro Watanabe

Proceedings Volume 9750, 97501E (2016) https://doi.org/10.1117/12.2208844

KEYWORDS: Pulsed laser operation, Mie scattering, Scattering, Femtosecond phenomena, Laser scattering, Fiber optics sensors, Light scattering, Cladding, Light, Laser development, Sensors, Optical fibers

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Proceedings Article | 1 March 2016 Paper

An LSPR fiber optic sensor based on in-line micro-holes fabricated by a second harmonic 400nm femtosecond laser

Masahiko Shiraishi, Kenji Goya, Atsushi Seki, Kazuhiro Watanabe

Proceedings Volume 9750, 97501L (2016) https://doi.org/10.1117/12.2209453

KEYWORDS: Fiber optics, Absorbance, Fiber optics sensors, Sensors, Femtosecond phenomena, Refractive index, Light scattering, Ocean optics, Waveguides, Nanoparticles

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Proceedings Article | 1 July 2015 Paper

Multi-point hydrogen detection system using hetero-core structured optical fiber hydrogen tip sensor based on surface plasmon resonance and pseudorandom noise code correlation reflectometry

Ai Hosoki, Michiko Nishiyama, Hirotaka Igawa, Atsushi Seki, Kazuhiro Watanabe

Proceedings Volume 9655, 965515 (2015) https://doi.org/10.1117/12.2184381

KEYWORDS: Hydrogen, Sensors, Palladium, Optical fibers, Signal to noise ratio, Reflectometry, Gold, Surface plasmons, Reflection, Fiber optics sensors

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Proceedings Article | 1 July 2015 Paper

A fiber optic spectrometer produced by a femtosecond, 400-nm second harmonic Ti:sapphire laser

K. Goya, T. Itoh, A. Seki, K. Watanabe

Proceedings Volume 9655, 96552L (2015) https://doi.org/10.1117/12.2184428

KEYWORDS: Spectroscopy, Optical fibers, Absorbance, Femtosecond phenomena, Sensors, Absorption, Fiber optics, Fiber lasers, Pulsed laser operation, Laser drilling

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Proceedings Article | 17 May 2011 Paper

Bending effect on fiber optic evanescent absorption sensor for sensitivity enhancement in hetero-core structured fiber optic

Yuko Takemoto, Atsushi Seki, Keiju Takagi, Hiroyuki Sasaki, Michiko Nishiyama, Kazuhiro Watanabe

Proceedings Volume 7753, 775349 (2011) https://doi.org/10.1117/12.884938

KEYWORDS: Fiber optics, Refractive index, Sensors, Fiber optics sensors, Absorption, Absorption spectroscopy, Molecules, Fiber optics tests, Cladding, Spectroscopy

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Proceedings Article | 14 April 2011 Paper

A monitoring of breathing using a hetero-core optical fiber sensor

S. Akita, A. Seki, K. Watanabe

Proceedings Volume 7981, 79812W (2011) https://doi.org/10.1117/12.880366

KEYWORDS: Sensors, Humidity, Fiber optics sensors, Nose, Optical fibers, Water, Cladding, Polymers, Vital signs, Brain

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Proceedings Article | 5 October 2009 Paper

Multipoint measurement based on hetero-core structured optical fiber SPR sensor employing OTDR equipment

Keiju Takagi, Masahiko Shiraishi, Michiko Nishiyama, Atsushi Seki, Kazuhiro Watanabe

Proceedings Volume 7503, 75031Z (2009) https://doi.org/10.1117/12.835108

KEYWORDS: Sensors, Refractive index, Signal attenuation, Fiber optics sensors, Cladding, Structured optical fibers, Liquids, Surface plasmons, Fiber optics, Fiber optics tests

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Proceedings Article | 28 September 2005 Paper

Optical fiber liquid-level sensor using a surface plasmon resonance

Mitsuhiro Iga, Atsushi Seki, Kazuhiro Watanabe

Proceedings Volume 5952, 59521D (2005) https://doi.org/10.1117/12.622756

KEYWORDS: Sensors, Liquids, Fiber optics sensors, Reflection, Refractive index, Gold, Metals, Cladding, Optical fibers, Surface plasmons

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Proceedings Article | 9 June 2004 Paper

Terminated optical fiber sensor based on surface plasmon resonance for refractive index detection

Mitsuhiro Iga, Atsushi Seki, Kazuhiro Watanabe

Proceedings Volume 5502, (2004) https://doi.org/10.1117/12.566611

KEYWORDS: Refractive index, Sensors, Surface plasmons, Structured optical fibers, Fiber optics sensors, Gold, Metals, Cladding, Chromium, Optical fibers

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Proceedings Article | 17 February 2003 Paper

Hetero-core-structured fiber optic sensor based on surface plasmon resonance

Mitsuhiro Iga, Tsuyoshi Nakazawa, Atsushi Seki, Yuzuru Kubota, Kazuhiro Watanabe

Proceedings Volume 4833, (2003) https://doi.org/10.1117/12.474845

KEYWORDS: Sensors, Fiber optics sensors, Cladding, Refractive index, Surface plasmons, Silver, Metals, Prisms, Interfaces, Fiber optics

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Proceedings Article | 8 May 2001 Paper

Novel fiber optic sensor using heterocore structures and its applications

Mitsuhiro Iga, Kyouko Hirama, Shusaku Hotta, Hidenori Igarashi, Atsushi Seki, Kazuhiro Watanabe, Yuzuru Kubota

Proceedings Volume 4416, (2001) https://doi.org/10.1117/12.427015

KEYWORDS: Sensors, Environmental sensing, Fiber optics sensors, Cladding, Absorption, Distortion, Liquids, Optical fibers, Optical networks, Structured optical fibers

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Showing 5 of 12 publications

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