Plasma analyses during femtosecond laser ablation of Ti, Zr, and Hf

Journal Article · Tue Mar 15 04:00:00 EST 2005 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.1861519· OSTI ID:20668243

Grojo, D; Hermann, J; Perrone, A ^[1]

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1. LP3-UMR 6182 Centre National de la Recherche Scientifique, Faculte des Sciences de Luminy, Case 917, 13288 Marseille Cedex 9 (France)

Femtosecond laser ablation of Ti, Zr, and Hf has been investigated by means of in situ plasma diagnostics. Fast imaging was used to characterize the plasma plume expansion on a nanosecond time scale. In addition, time- and space-resolved optical emission spectroscopy was employed to determine the plume composition and the characteristic expansion velocities of plasma species. It is shown that two plume components with different expansion velocities are generated by the interaction of ultrashort laser pulses with metals. The composition and the expansion behavior of the two components have been analyzed as a function of laser fluence and target material. The results are discussed in terms of mechanisms responsible for ablation by ultrashort laser pulses.

• OSTI ID: 20668243
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 6 Vol. 97; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABLATION
EMISSION SPECTROSCOPY
EXPANSION
HAFNIUM
LASER-PRODUCED PLASMA
LASERS
PLASMA DIAGNOSTICS
PLASMA PRODUCTION
PLUMES
PULSES
SPATIAL RESOLUTION
TIME RESOLUTION
TITANIUM
ZIRCONIUM