Nanofabrication of high throughput 30 nm hole 2D arrays by a simple visible laser ablation technique

Kazushi Yamada, Chieko Narita, Ramanujam Kumaresan, Takuya Shinohara, Mitsuhiro Terakawa, Yasuyuki Tsuboi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this paper, we demonstrate two-dimensional nanohole array substrates prepared using the visible laser ablation technique. We fabricated Au/polymer hybrid thin films where the Au nanoparticles were fixed onto the block copolymer substrate, which was used as the microphase-separated structure. The film was coated with a thin layer of poly(methyl acrylate), and was then irradiated with a nanosecond 532 nm pulsed laser light. The light excited the resonant plasmon absorption band of the Au nanoparticles. The nanoparticles underwent explosive vaporization via a superheated state, resulting in the formation of two-dimensional nanohole arrays on the film surface. The relevant mechanism aspects of the nanohole formation process and the relationship with laser fluence are presented.

Original languageEnglish
Pages (from-to)868-872
Number of pages5
JournalApplied Surface Science
Volume420
DOIs
Publication statusPublished - 2017 Oct 31

Fingerprint

Laser ablation
Nanotechnology
Throughput
Nanoparticles
Substrates
Pulsed lasers
Vaporization
Block copolymers
Absorption spectra
Polymers
Thin films
Lasers

Keywords

  • Gold nanoparticles
  • Laser ablation
  • Nanofabrication
  • Plasmon
  • Visible laser

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

Nanofabrication of high throughput 30 nm hole 2D arrays by a simple visible laser ablation technique. / Yamada, Kazushi; Narita, Chieko; Kumaresan, Ramanujam; Shinohara, Takuya; Terakawa, Mitsuhiro; Tsuboi, Yasuyuki.

In: Applied Surface Science, Vol. 420, 31.10.2017, p. 868-872.

Research output: Contribution to journalArticle

Yamada, Kazushi ; Narita, Chieko ; Kumaresan, Ramanujam ; Shinohara, Takuya ; Terakawa, Mitsuhiro ; Tsuboi, Yasuyuki. / Nanofabrication of high throughput 30 nm hole 2D arrays by a simple visible laser ablation technique. In: Applied Surface Science. 2017 ; Vol. 420. pp. 868-872.
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