Langmuir probe study of plasma expansion in pulsed laser ablation

T.N. Hansen; Jørgen Schou; J.G. Lunney

doi:10.1007/s003390051485

Langmuir probe study of plasma expansion in pulsed laser ablation

T.N. Hansen, Jørgen Schou, J.G. Lunney

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Langmuir probes were used to monitor the asymptotic expansion of the plasma produced by the laser ablation of a silver target in a vacuum. The measured angular and temporal distributions of the ion flux and electron temperature were found to be in good agreement with the self-similar isentropic and adiabatic solution of the gas dynamics equations describing the expansion. The value of the adiabatic index gamma was about 1.25, consistent with the ablation plume being a low temperature plasma.

Original language	English
Journal	Applied Physics A: Materials Science & Processing
Volume	69
Issue number	S
Pages (from-to)	S601-S604
ISSN	0947-8396
DOIs	https://doi.org/10.1007/s003390051485
Publication status	Published - 1999

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title = "Langmuir probe study of plasma expansion in pulsed laser ablation",

abstract = "Langmuir probes were used to monitor the asymptotic expansion of the plasma produced by the laser ablation of a silver target in a vacuum. The measured angular and temporal distributions of the ion flux and electron temperature were found to be in good agreement with the self-similar isentropic and adiabatic solution of the gas dynamics equations describing the expansion. The value of the adiabatic index gamma was about 1.25, consistent with the ablation plume being a low temperature plasma. ",

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T1 - Langmuir probe study of plasma expansion in pulsed laser ablation

AU - Hansen, T.N.

AU - Schou, Jørgen

AU - Lunney, J.G.

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N2 - Langmuir probes were used to monitor the asymptotic expansion of the plasma produced by the laser ablation of a silver target in a vacuum. The measured angular and temporal distributions of the ion flux and electron temperature were found to be in good agreement with the self-similar isentropic and adiabatic solution of the gas dynamics equations describing the expansion. The value of the adiabatic index gamma was about 1.25, consistent with the ablation plume being a low temperature plasma.

AB - Langmuir probes were used to monitor the asymptotic expansion of the plasma produced by the laser ablation of a silver target in a vacuum. The measured angular and temporal distributions of the ion flux and electron temperature were found to be in good agreement with the self-similar isentropic and adiabatic solution of the gas dynamics equations describing the expansion. The value of the adiabatic index gamma was about 1.25, consistent with the ablation plume being a low temperature plasma.

KW - Optik og sensorsystemer

U2 - 10.1007/s003390051485

DO - 10.1007/s003390051485

M3 - Journal article

SN - 0947-8396

VL - 69

SP - S601-S604

JO - Applied Physics A: Materials Science & Processing

JF - Applied Physics A: Materials Science & Processing

IS - S

ER -

Langmuir probe study of plasma expansion in pulsed laser ablation

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