Prof. Masayuki Okoshi Profile

Prof. Masayuki Okoshi

Professor at National Defense Academy

SPIE Involvement:

Author

Publications (15)

Proceedings Article | 17 March 2023 Presentation

Fabrication of periodic microcapsule structures on silicone rubber by 193 nm ArF excimer laser

Kaede Iwasaki, Tsuyoshi Yoshida, Masayuki Okoshi

Proceedings Volume PC12408, PC124080O (2023) https://doi.org/10.1117/12.2649603

KEYWORDS: Silicon, Semiconductor lasers, Excimer lasers, Silica, Liquids, Wet etching, Resistance, Pulsed laser operation, Polymers, Hydrogen fluoride lasers

Read Abstract +

Proceedings Article | 1 April 2022 Presentation

The formation of periodic micro-cup structures on silicone rubber surface by 193 nm ArF excimer laser irradiation

Kaede Iwasaki, Tsuyoshi Yoshida, Masayuki Okoshi

Proceedings Volume PC11988, PC1198808 (2022) https://doi.org/10.1117/12.2607201

KEYWORDS: Silicon, Semiconductor lasers, Excimer lasers, Silica, Wet etching, Pulsed laser operation, Resistance, Polymers, Hydrogen fluoride lasers, Etching

Read Abstract +

Proceedings Article | 5 March 2021 Presentation

Al film patterning on poly-carbonate by F2 laser irradiation

Tsuyoshi Yoshida, Hidetoshi Nojiri, Masayuki Okoshi

Proceedings Volume 11673, 1167312 (2021) https://doi.org/10.1117/12.2577070

KEYWORDS: Aluminum, Laser irradiation, Optical lithography, Thin film coatings, Silicon films, Silicon, Wet etching, Thin films, Semiconductor lasers, Interfaces

Read Abstract +

Proceedings Article | 21 April 2017 Presentation

Crack suppression of SiO2 thin film formed by 157 nm F2 laser induced photochemical surface modification of hard silicone coating film on polycarbonate (Conference Presentation)

Hidetoshi Nojiri, Masayuki Okoshi

Proceedings Volume 10091, 1009107 (2017) https://doi.org/10.1117/12.2250124

KEYWORDS: Carbon dioxide lasers, Silica, Silicon, Semiconductor lasers, Silicon films, Coating, Thin film coatings, Thin films, Profilometers, Laser irradiation

Read Abstract +

Proceedings Article | 22 February 2011 Paper

Patterning of aluminum thin films by 157nm F[sub]2[/sub] laser

K. Iwai, M. Okoshi, H. Nojiri, N. Inoue

Proceedings Volume 7920, 79201B (2011) https://doi.org/10.1117/12.879788

KEYWORDS: Aluminum, Thin films, Silica, Glasses, Nd:YAG lasers, Laser irradiation, Optical lithography, Interfaces, Gold, Oxidation

Read Abstract +

Proceedings Article | 22 February 2011 Paper

F[sub]2[/sub] laser formation of SiO[sub]2[/sub] protective layer onto polycarbonate for lightweight vehicle window

Shingo Sonobe, Yoshihiko Nojima, Masayuki Okoshi, Hidetoshi Nojiri, Narumi Inoue

Proceedings Volume 7920, 79201A (2011) https://doi.org/10.1117/12.878450

KEYWORDS: Silicon, Semiconductor lasers, Silica, Laser irradiation, Thin film coatings, Resistance, Profilometers, Laser applications, Pulsed laser operation, Glasses

Read Abstract +

Proceedings Article | 12 April 2005 Paper

F₂-laser writing of silica optical waveguides in silicone rubber

Masayuki Okoshi, Jianzhao Li, Peter Herman

Proceedings Volume 5713, (2005) https://doi.org/10.1117/12.589392

KEYWORDS: Waveguides, Silica, Silicon, Pulsed laser operation, Semiconductor lasers, Infrared radiation, Photomasks, Light scattering, Charge-coupled devices, Optical circuits

Read Abstract +

Proceedings Article | 8 October 2004 Paper

F2 laser ablation of silicone rubber

Hiromitsu Takao, Masayuki Okoshi, Narumi Inoue

Proceedings Volume 5662, (2004) https://doi.org/10.1117/12.596303

KEYWORDS: Silicon, Semiconductor lasers, Laser irradiation, Laser ablation, Carbon, Laser bonding, Raman spectroscopy, Gas lasers, Etching, Spectroscopy

Read Abstract +

Proceedings Article | 19 February 2003 Paper

Decomposition of methylene blue with photocatalytic TiO2 thin films deposited by pulsed-laser deposition

Masayuki Okoshi, Yusuke Kosuge, Narumi Inoue, Tsugito Yamashita

Proceedings Volume 4830, (2003) https://doi.org/10.1117/12.486577

KEYWORDS: Oxygen, Thin films, Crystals, Pulsed laser deposition, Silicon, Thin film deposition, Surface roughness, Chlorine, Absorbance, Titanium dioxide

Read Abstract +

Proceedings Article | 19 February 2003 Paper

Refractive index of SiO2 thin films deposited by pulsed-laser deposition with silicone targets for fabricating waveguide devices

Masayuki Okoshi, Masaaki Kuramatsu, Hiromitsu Takao, Narumi Inoue

Proceedings Volume 4830, (2003) https://doi.org/10.1117/12.486575

KEYWORDS: Refractive index, Silicon, Waveguides, Silica, Pulsed laser deposition, Silicon films, Helium neon lasers, Semiconductor lasers, Thin film deposition, Thin films

Read Abstract +

Proceedings Article | 18 June 2002 Paper

Pulsed laser deposition of silicon dioxide thin films with silicone targets for fabricating waveguide devices

Masayuki Okoshi, Masaaki Kuramatsu, Narumi Inoue

Proceedings Volume 4637, (2002) https://doi.org/10.1117/12.470651

KEYWORDS: Refractive index, Silicon, Waveguides, Silica, Thin films, Semiconductor lasers, Silicon films, Pulsed laser deposition, Laser ablation, Oxygen

Read Abstract +

Proceedings Article | 6 November 2000 Paper

395-nm and 790-nm femtosecond laser ablation of aluminum-doped zinc oxide

Masayuki Okoshi, Kouji Higashikawa, Mitsugu Hanabusa

Proceedings Volume 4088, (2000) https://doi.org/10.1117/12.405719

KEYWORDS: Femtosecond phenomena, Zinc, Zinc oxide, Laser ablation, Pulsed laser deposition, Transparency, Ions, Transmittance, Optical testing, Chemical species

Read Abstract +

Proceedings Article | 17 May 1996 Paper

Excimer laser-induced photochemical modification of contact lens material for tear affinity

Yoko Inoue, Masayuki Okoshi, Koichi Toyoda, Masataka Murahara

Proceedings Volume 2673, (1996) https://doi.org/10.1117/12.240058

KEYWORDS: Chemical species, Excimer lasers, Polymethylmethacrylate, Hydrogen, Carbon, Laser irradiation, Excimers, Visible radiation, Transmittance, Laser bonding

Read Abstract +