Time-resolved shadowgraph imaging of femtosecond laser-induced forward transfer of solid materials

Matthias Feinaeugle, A.P. Alloncle, Ph. Delaporte, C.L. Sones, R.W. Eason

    Research output: Contribution to journalArticleAcademicpeer-review

    37 Citations (Scopus)

    Abstract

    The transfer of solid phase material by femtosecond laser-induced forward transfer (LIFT) at atmospheric pressure by a time-resolved shadowgraph technique is studied. The influence of laser fluence on transfer of material in solid, fragmented and molten state is investigated during femtosecond LIFT of initially solid layers of thermoelectric bismuth selenide (Bi 2Se 3), piezoelectric lead zirconate titanate (PZT) and magnetostrictive Terfenol-D. We report ejection velocities of ∼48 m/s and ∼34 m/s for intact transfer of ∼1.1 μm thick Bi 2Se 3 and ∼1.8 μm thick PZT respectively, and of ∼140 m/s for ∼0.5 μm thick Terfenol-D. During intact transfer, contrary to what has been reported so far, no shock wave above the substrate surface was observed.
    Original languageEnglish
    Pages (from-to)8475-8483
    Number of pages9
    JournalApplied surface science
    Volume258
    Issue number22
    DOIs
    Publication statusPublished - 1 Sep 2012

    Keywords

    • Laser-induced forward transfer
    • Shadowgraphy
    • Time-resolved imaging
    • Femtosecond laser
    • Shock wave
    • laser material processing

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