Postionisation of a spatially nonuniform plasma plume under high-intensity femtosecond laser irradiation

The plasma plume formed by a high-power nanosecond laser pulse on the surface of solid targets as well as the plume parameters after its irradiation by a high-intensity femtosecond laser pulse are investigated by optical diagnostic techniques. Two-dimensional patterns of the electron plasma density...

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Published inQuantum electronics (Woodbury, N.Y.) Vol. 47; no. 1; pp. 42 - 47
Main Authors Krestovskikh, D A, Ivanov, K A, Tsymbalov, I N, Shulyapov, S A, Bukin, V V, Volkov, R V, Rupasov, A A, Savel'ev, A B
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2017
Subjects
ATOMS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Diagnostic systems
ELECTRON DENSITY
Electron plasma
Evolution
Femtosecond
Femtosecond pulses
Field ionization
IONIZATION
IRRADIATION
LASER RADIATION
LASER TARGETS
LASER-PRODUCED PLASMA
Lasers
Nonuniform plasmas
Plasma
Plasma clouds
PLASMA DENSITY
PLUMES
PULSES
Quantum electronics
SOLIDS
SURFACES
TWO-DIMENSIONAL CALCULATIONS
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Summary:The plasma plume formed by a high-power nanosecond laser pulse on the surface of solid targets as well as the plume parameters after its irradiation by a high-intensity femtosecond laser pulse are investigated by optical diagnostic techniques. Two-dimensional patterns of the electron plasma density are reconstructed from experimentally recorded interferograms at different stages of plasma evolution. It is shown that the interaction of the high-intensity femtosecond radiation with the plasma cloud is accompanied by the field ionisation of atoms and ions as well as by a significant increase in the electron density throughout the interaction volume.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1063-7818
1468-4799
DOI:10.1070/QEL16267