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Title: On the plume splitting of pulsed laser ablated Fe and AI plasmas
Authors: Mahmood, S.
Rawat, Rajdeep Singh
Darby, M. S. B.
Zakaullah, M.
Springham, Stuart Victor
Tan, Augustine Tuck Lee
Lee, Paul Choon Keat
Issue Date: 2010
Citation: Mahmood, S., Rawat, R. S., Darby, M. S. B., Zakaullah, M., Springham, S. V., Tan, T. L., & Lee, P. (2010). On the plume splitting of pulsed laser ablated Fe and Al plasmas. Physics of Plasmas, 17(10), 103105.
Abstract: A time resolved imaging study of pulsed laser ablated Fe and Al plasma plumes with specific interest in the splitting of plumes into the slow and fast moving components as they expand through the background argon gas at different pressures is reported. The material ablation was achieved using a Q-switched Nd:YAG yttrium aluminum garnet laser operating at 532 nm with a pulse duration of 8 ns full width at half maximum and a fluence of 30 Jcm−2 at the target surface. Typical time resolved images with low magnification show that the splitting occurs at moderate background gas pressures 0.5 and 1.0 mbar for Fe, and 0.2 mbar for Al plasma plumes . The plume splitting did not occur for higher background gas pressures.
ISSN: 1089-7674 (online)
1070-664X (print)
Other Identifiers: 10.1063/1.3491410
Appears in Collections:Journal Articles

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