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Applied Physics A

, Volume 61, Issue 1, pp 33–37 | Cite as

Sub-picosecond UV laser ablation of metals

  • S. Preuss
  • A. Demchuk
  • M. Stuke
Article

Abstract

Laser ablation of Nickel, Copper, Molybdenum, Indium, Tungsten and Gold by short ultraviolet laser pulses (0.5 ps, 248 nm) in vacuum is reported for the first time. For Nickel and Indium, ablation is also studied in air to demonstrate the influence of the ambient atmosphere. Metal ablation in air is significantly less efficient than in vacuum due to redeposition of ablated material. The ablation rates in vacuum are discussed using a thermal model, which also allows to estimate ablation rates for other metals from basic optical and thermal properties. A comparison of the morphology of ablation sites after nanosecond and sub-picosecond ablation shows unequivocally the advantages of short-pulse laser ablation for high-precision patterning of thermally good conducting materials in micron-scale dimensions.

PACS

81.15 

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • S. Preuss
    • 1
  • A. Demchuk
    • 1
  • M. Stuke
    • 1
  1. 1.Max-Planck-Institut für biophysikalische ChemieGöttingenGermany

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