Applied Physics A

, Volume 76, Issue 3, pp 373–378

Rate dependence of short-pulse laser ablation of metals in air and vacuum

  • A.E. Wynne
  • B.C. Stuart

DOI: 10.1007/s00339-002-1823-8

Cite this article as:
Wynne, A. & Stuart, B. Appl Phys A (2003) 76: 373. doi:10.1007/s00339-002-1823-8

Abstract.

Ablation rates of aluminum and stainless steel are studied as a function of fluence, hole depth, pulse duration and ambient pressure (air vs vacuum). We find a weak rate dependence on pulse duration from 150 fs to 500 ps, and a strong rate dependence on hole depth due to surface roughness. Machining in air plays an important role in deep holes, but has a weaker influence on initial surface ablation rates. Oxidation greatly reduces drilling rates for deep holes in aluminum.

PACS: 79.20.Ds; 81.05.Bx; 89.20.Bb 

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • A.E. Wynne
    • 1
  • B.C. Stuart
    • 1
  1. 1.Lawrence Livermore National Laboratory, P.O. Box 808, L-477, Livermore, CA 94550, USAUS

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