Dr. Hiroaki Nishiyama Profile

Dr. Hiroaki Nishiyama

at Osaka Univ

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Author

Publications (9)

Proceedings Article | 25 February 2010 Paper

Nonlinear lithographic properties by femtosecond laser pulses using a low-NA lens

M. Mizoshiri, H. Nishiyama, J. Nishii, Y. Hirata

Proceedings Volume 7589, 75891E (2010) https://doi.org/10.1117/12.842070

KEYWORDS: Refractive index, Femtosecond phenomena, Absorption, Lithography, Nonlinear optics, Diffraction gratings, Photoresist materials, Laser irradiation, Ultraviolet radiation, Thermal effects

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SPIE Journal Paper | 1 February 2009 Open Access

Commentary: Femtosecond-laser nanolithography for photonic applications

Hiroaki Nishiyama

JNP, Vol. 3, Issue 01, 030301, (February 2009) https://doi.org/10.1117/12.10.1117/1.3097264

KEYWORDS: Nanolithography, Femtosecond phenomena, Semiconductors, Photonic nanostructures, Polymers, Absorption, Photonic devices, 3D microstructuring, Spatial resolution, Microfabrication

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Proceedings Article | 9 September 2008 Paper

SiO2-based variable microfluidic lenses fabricated by femtosecond laser lithography-assisted micromachining

M. Mizoshiri, H. Nishiyama, J. Nishii, Y. Hirata

Proceedings Volume 7039, 70390E (2008) https://doi.org/10.1117/12.795053

KEYWORDS: Silica, Microfluidics, Lenses, Femtosecond phenomena, Absorption, Fresnel lenses, Micromachining, Lithography, Silicon, Refractive index

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Proceedings Article | 25 August 2008 Paper

Silica-based diffractive/refractive hybrid microlenses fabricated by multiphoton lithography

H. Nishiyama, M. Mizoshiri, J. Nishii, Y. Hirata

Proceedings Volume 7056, 70561F (2008) https://doi.org/10.1117/12.795014

KEYWORDS: Femtosecond phenomena, Lenses, Microlens, Absorption, Lithography, Fresnel lenses, Silica, Plasma, Scanning electron microscopy, Laser processing

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Proceedings Article | 12 February 2008 Paper

Nonplanar surface structures of inorganic materials fabricated by femtosecond laser lithography

H. Nishiyama, M. Mizoshiri, J. Nishii, Y. Hirata

Proceedings Volume 6883, 68830E (2008) https://doi.org/10.1117/12.762542

KEYWORDS: Silica, Femtosecond phenomena, Absorption, Lenses, Plasma, Lithography, Glasses, Plasma etching, Oxygen, Micromachining

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Proceedings Article | 8 October 2004 Paper

Fabrication of high-temperature-resistant laser-induced gratings with large refractive index modulation: space-selective precipitation of Ge nanoparticles in glasses

Hiroaki Nishiyama, Isamu Miyamoto, Kenji Kintaka, Junji Nishii

Proceedings Volume 5662, (2004) https://doi.org/10.1117/12.596299

KEYWORDS: Annealing, Nanoparticles, Diffraction, Glasses, Refractive index, Germanium, Diffraction gratings, Etching, Modulation, HF etching

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Proceedings Article | 18 November 2003 Paper

Preparation of channel waveguides with extremely thermally stabilized laser-induced gratings

Hiroaki Nishiyama, Tomokazu Sano, Etsuji Ohmura, Isamu Miyamoto, Shin-ichi Matsumoto, Mitsunori Saito, Kenji Kintaka, Junji Nishii

Proceedings Volume 5063, (2003) https://doi.org/10.1117/12.540896

KEYWORDS: Diffraction gratings, Annealing, Diffraction, Waveguides, Channel waveguides, Laser stabilization, Glasses, Heat treatments, Refractive index, Optical filters

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Proceedings Article | 19 February 2003 Paper

Photo- and thermo-induced refractive index change of GeO2-B2O3-SiO3 thin films fabricated by PECVD: fabrication of extremely thermally stabilized gratings

Hiroaki Nishiyama, Isamu Miyamoto, Kenji Kintaka, Junji Nishii

Proceedings Volume 4830, (2003) https://doi.org/10.1117/12.499713

KEYWORDS: Annealing, Refractive index, Diffraction gratings, Diffraction, Absorption, Laser irradiation, Thin films, Plasma enhanced chemical vapor deposition, Glasses, Oxygen

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Proceedings Article | 25 February 2002 Paper

Application of photosensitive GeO2-B2O3-SiO2 thin films to optical waveguide

Hiroaki Nishiyama, Isamu Miyamoto, Kenji Kintaka, Junji Nishii

Proceedings Volume 4426, (2002) https://doi.org/10.1117/12.456900

KEYWORDS: Refractive index, Thin films, Waveguides, Boron, Absorption, Excimer lasers, Annealing, Ultraviolet radiation, Plasma enhanced chemical vapor deposition, Glasses

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Showing 5 of 9 publications

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