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On the plume splitting of pulsed laser ablated Fe and Al plasmas

On the plume splitting of pulsed laser ablated Fe and Al plasmas
On the plume splitting of pulsed laser ablated Fe and Al plasmas
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 ~ 8ns full width at half maximum and a fluence of 30 µJ.cm-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.
plasma materials processing, pulsed laser deposition
1070-664X
103105-[6pp]
Mahmood, S.
c4d99536-7263-42a9-9816-4d353b1e329c
Rawat, R.S.
410f1cea-0624-4764-91af-4b1829766201
Darby, M.S.B.
99025fd3-37d1-49e8-95ab-60cb32abb532
Zakaullah, M.
2f240028-b0cc-4680-a958-986889825bcc
Springham, S.V.
f5c89179-af53-45cb-88f4-5fd1251ce96f
Tan, T.L.
eae57377-88ba-488d-a7c8-17360e0d927a
Lee, P.
ba46704b-e247-43d8-b04e-be2ca51cb87c
Mahmood, S.
c4d99536-7263-42a9-9816-4d353b1e329c
Rawat, R.S.
410f1cea-0624-4764-91af-4b1829766201
Darby, M.S.B.
99025fd3-37d1-49e8-95ab-60cb32abb532
Zakaullah, M.
2f240028-b0cc-4680-a958-986889825bcc
Springham, S.V.
f5c89179-af53-45cb-88f4-5fd1251ce96f
Tan, T.L.
eae57377-88ba-488d-a7c8-17360e0d927a
Lee, P.
ba46704b-e247-43d8-b04e-be2ca51cb87c

Mahmood, S., Rawat, R.S., Darby, M.S.B., Zakaullah, M., Springham, S.V., Tan, T.L. and Lee, P. (2010) On the plume splitting of pulsed laser ablated Fe and Al plasmas. Physics of Plasmas, 17 (10), 103105-[6pp]. (doi:10.1063/1.3491410).

Record type: Article

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 ~ 8ns full width at half maximum and a fluence of 30 µJ.cm-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.

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More information

Published date: 20 October 2010
Keywords: plasma materials processing, pulsed laser deposition
Organisations: Optoelectronics Research Centre, Chemistry

Identifiers

Local EPrints ID: 356036
URI: http://eprints.soton.ac.uk/id/eprint/356036
ISSN: 1070-664X
PURE UUID: 5491ddbc-001e-487f-b1fe-105353c74780

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Date deposited: 10 Sep 2013 11:00
Last modified: 20 Sep 2019 16:30

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