Influence of the atomic mass of the background gas on laser ablation plume propagation

Salvatore Amoruso, Jørgen Schou, James G. Lunney

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    A combination of time-of-flight ion probe measurements and gas dynamical modeling has been used to investigate the propagation of a laser ablation plume in gases of different atomic/molecular weight. The pressure variation of the ion time-of-flight was found to be well described by the gas dynamical model of Predtechensky and Mayorov (Appl. Supercond. 1:2011, 1993). In particular, the model describes how the pressure required to stop the plume in a given distance depends on the atomic/molecular weight of the gas, which is a feature that cannot be explained by standard point-blast-wave descriptions of laser ablation plume expansion in gas.
    Original languageEnglish
    JournalApplied Physics A: Materials Science & Processing
    Volume92
    Issue number4
    Pages (from-to)907-911
    ISSN0947-8396
    DOIs
    Publication statusPublished - 2008

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