Laser disk texturing with small bumps

C. W. An, Y. F. Lu, Y. W. Goh, W. J. Wang

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

Pulsed green laser with 532 nm wavelength and 270 ns pulse duration was firsjt time used to produce a textured zone on a Ni-P disk substrate. Combining a so-called tip-writing method, typical small bumps of interest with bump diameter around 3 nm and with bump height about 10-20 nm were successfully created. A dependence of bump height on bump diameter was discussed under the case of tip-writing. And the changes of bump shapes with laser pulse energy were studied and bumps with sunflower-like shape were observed under low laser pulse energy.

Original languageEnglish (US)
Pages (from-to)254-261
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3550
DOIs
StatePublished - Aug 15 1998
Externally publishedYes
EventLaser Processing of Materials and Industrial Applications II 1998 - Beijing, China
Duration: Sep 16 1998Sep 19 1998

Keywords

  • Laser texturing
  • Small bump
  • Tip-writing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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