Applied Physics A

, Volume 81, Issue 2, pp 325–328

Nanotexturing of gold films by femtosecond laser-induced melt dynamics

  • J. Koch
  • F. Korte
  • T. Bauer
  • C. Fallnich
  • A. Ostendorf
  • B.N. Chichkov
Article

Abstract

Using tightly focused femtosecond laser pulses one can produce sub-micrometer holes and periodic structures in almost all solid materials. But with structure sizes below one micron, femtosecond laser structuring forfeits its universal character. In this paper we concentrate on the discussion of the influence of electron-phonon coupling strength in metal ablation morphology. In metals with weak electron-phonon coupling, results of femtosecond laser ablation can be dominated by solidified flow dynamics in molten material. One can make use of this phenomenon for ablation-free nanotexturing of gold films.

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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • J. Koch
    • 1
  • F. Korte
    • 1
  • T. Bauer
    • 1
  • C. Fallnich
    • 1
  • A. Ostendorf
    • 1
  • B.N. Chichkov
    • 1
  1. 1.Laser Zentrum Hannover e.V.HannoverGermany

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