Microfabrication of Au film using optical vortex beam

Sho Kawagoe, Ryosuke Nakamura, Ryohei Tasaki, Hiroki Oshima, Mitsuhiro Higashihata, Daisuke Nakamura, Takashige Omatsu

研究成果: ジャーナルへの寄稿記事

抄録

We fabricate Au microneedle structures by irradiating nanosecond optical vortex pulse, possessing orbital angular momentum (OAM), to Au thin film. Twisted microneedle associated with the handed-ness of optical vortex is formed. The partial liquid motion of the molten Au film and the OAM transfer effects play a role to establish a twisted Au microneedle. An Au microsphere on a twisted pillar is also achieved. Non-twisted structure is fabricated with picosecond optical vortex pulse irradiation due to unoptimized condition such as laser fluence, film thickness and unavoidable imperfections of the optical vortex.

元の言語英語
ページ(範囲)31-34
ページ数4
ジャーナルJournal of Laser Micro Nanoengineering
14
発行部数1
DOI
出版物ステータス出版済み - 4 1 2019

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Optical films
Microfabrication
Vortex flow
vortices
Angular momentum
angular momentum
orbitals
Momentum transfer
pulses
Microspheres
momentum transfer
Film thickness
Molten materials
Laser pulses
fluence
film thickness
Irradiation
Thin films
Defects
irradiation

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

これを引用

Kawagoe, S., Nakamura, R., Tasaki, R., Oshima, H., Higashihata, M., Nakamura, D., & Omatsu, T. (2019). Microfabrication of Au film using optical vortex beam. Journal of Laser Micro Nanoengineering, 14(1), 31-34. https://doi.org/10.2961/jlmn.2019.01.0006

Microfabrication of Au film using optical vortex beam. / Kawagoe, Sho; Nakamura, Ryosuke; Tasaki, Ryohei; Oshima, Hiroki; Higashihata, Mitsuhiro; Nakamura, Daisuke; Omatsu, Takashige.

:: Journal of Laser Micro Nanoengineering, 巻 14, 番号 1, 01.04.2019, p. 31-34.

研究成果: ジャーナルへの寄稿記事

Kawagoe, S, Nakamura, R, Tasaki, R, Oshima, H, Higashihata, M, Nakamura, D & Omatsu, T 2019, 'Microfabrication of Au film using optical vortex beam', Journal of Laser Micro Nanoengineering, 巻. 14, 番号 1, pp. 31-34. https://doi.org/10.2961/jlmn.2019.01.0006
Kawagoe, Sho ; Nakamura, Ryosuke ; Tasaki, Ryohei ; Oshima, Hiroki ; Higashihata, Mitsuhiro ; Nakamura, Daisuke ; Omatsu, Takashige. / Microfabrication of Au film using optical vortex beam. :: Journal of Laser Micro Nanoengineering. 2019 ; 巻 14, 番号 1. pp. 31-34.
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