Reduced fractional absorption and second harmonic emission in laser-produced plasmas

H Ruhl; Robert Alan Cairns

doi:10.1063/1.872388

Reduced fractional absorption and second harmonic emission in laser-produced plasmas

H Ruhl, Robert Alan Cairns

Applied Mathematics

Research output: Contribution to journal › Article › peer-review

Abstract

Both particle-in-cell and Vlasov simulations of the collective absorption of p-polarized intense laser light incident on a plasma with a steep density profile show the fractional absorption decreasing with intensity for large angles of incidence. Here an analytical model is developed that indicates that this effect for a high-temperature plasma (T-e greater than or equal to 2.5 keV) is connected with the conversion of a large fraction of the incident energy into harmonic emission. Good agreement between the results of Vlasov simulations and those of the nonlinear analytical model are obtained. (C) 1997 American Institute of Physics.

Original language	English
Pages (from-to)	2246-2252
Number of pages	7
Journal	Physics of Plasmas
Volume	4
Issue number	6
DOIs	https://doi.org/10.1063/1.872388
Publication status	Published - Jun 1997

Keywords

SOLID TARGETS
PULSE

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10.1063/1.872388

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abstract = "Both particle-in-cell and Vlasov simulations of the collective absorption of p-polarized intense laser light incident on a plasma with a steep density profile show the fractional absorption decreasing with intensity for large angles of incidence. Here an analytical model is developed that indicates that this effect for a high-temperature plasma (T-e greater than or equal to 2.5 keV) is connected with the conversion of a large fraction of the incident energy into harmonic emission. Good agreement between the results of Vlasov simulations and those of the nonlinear analytical model are obtained. (C) 1997 American Institute of Physics.",

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AU - Cairns, Robert Alan

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AB - Both particle-in-cell and Vlasov simulations of the collective absorption of p-polarized intense laser light incident on a plasma with a steep density profile show the fractional absorption decreasing with intensity for large angles of incidence. Here an analytical model is developed that indicates that this effect for a high-temperature plasma (T-e greater than or equal to 2.5 keV) is connected with the conversion of a large fraction of the incident energy into harmonic emission. Good agreement between the results of Vlasov simulations and those of the nonlinear analytical model are obtained. (C) 1997 American Institute of Physics.

KW - SOLID TARGETS

KW - PULSE

U2 - 10.1063/1.872388

DO - 10.1063/1.872388

M3 - Article

SN - 1070-664X

VL - 4

SP - 2246

EP - 2252

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 6

ER -

Reduced fractional absorption and second harmonic emission in laser-produced plasmas

Abstract

Keywords

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