On pulsed laser ablation of metals: comparing the relative importance of thermal diffusion in the nanosecond-femtosecond regime

D. Kapitan*, D. W. Coutts, C. E. Webb

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

4 Citations (Scopus)

Abstract

A comparative study is presented, alongside results of controlled production of sub-micron periodic surface structures in metals using a (ns) copper vapor laser. These findings demand careful consideration of the thermal diffusion process. By considering the energy deposition per unit volume u, a useful categorization of pulsed laser ablation of metals can be made. Within this framework, the relative advantages of fs vs. ns lasers are assessed, and it is shown that the degree energy deposition u defines different processing windows for different applications. Specifically, in the regime of explosive ablation, the thermal characteristics of fs and ns ablation are shown to be similar, in line with experimental results.

Original languageEnglish
Title of host publicationConference on Lasers and Electro-Optics Europe, CLEO/Europe 1998
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages307-307
Number of pages1
ISBN (Print)078034233X
Publication statusPublished - 1998
Externally publishedYes
EventProceedings of the 1998 International Symposium on Information Theory, CLEO/EUROPE'98 - Glasgow, Scotland
Duration: 14 Sep 199818 Sep 1998

Other

OtherProceedings of the 1998 International Symposium on Information Theory, CLEO/EUROPE'98
CityGlasgow, Scotland
Period14/09/9818/09/98

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