Co2-Laser-Induced Regular Periodic Structures on Glass Substrates

Yingzi Peng, Chengwu An, Minghui Hong, Yongfeng Lu, Tow Chong Chong

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

A CW CO2 laser was used to induce regular and tidy periodic structures on glass substrates. It is experimentally shown that the wave vector of the ripples is perpendicular to the recording polarization irrespective of the scanning direction. The occurrence of periodic structures is highly sensitive to laser power level and scanning velocity. To obtain appropriate periodic patterns, a combined condition of laser power and scanning velocity must be satisfied. Different directions of laser scanning lead to different occurrence areas. Different kinds of materials seem to develop the occurrence areas with almost similar shape, but their relative positions and dimensions may be different. The maximum laser scanning velocity range to form regular and tidy periodic structures appears at the optimum power condition. Moreover, the maximum period could be obtained at this optimum condition.

Original languageEnglish (US)
Pages (from-to)6920-6925
Number of pages6
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume42
Issue number11
DOIs
StatePublished - Nov 2003
Externally publishedYes

Keywords

  • CO laser Irradiation
  • Glass surface
  • Parameter dependence
  • Regular periodic structure
  • Scanning

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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