Efficient heating of near-surface plasmas with femtosecond laser pulses stimulated by nanoscale inhomogeneities

Yu M. Mikhailova; V. T. Platonenko; A. B. Savel'ev

doi:10.1070/QE2005v035n01ABEH002892

Efficient heating of near-surface plasmas with femtosecond laser pulses stimulated by nanoscale inhomogeneities

Yu M. Mikhailova, V. T. Platonenko, A. B. Savel'ev

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

5 Scopus citations

Abstract

The interaction of intense (10¹⁶ - 10¹⁸ W cm ²) ultrashort (50 - 200 fs) laser pulses with the dense plasmas produced at the surfaces of the porous target is numerically simulated by the particle-in-cell technique. Nanostructure-enhanced absorption of femtosecond pulses in high-porous (P > 4) targets is demonstrated. We show that the presence of plasma inhomogeneities essentially alters the heating of plasma electrons and ions; in particular, it stimulates the significant increase in the mean energy and number of hot electrons. The numerical investigation of the dynamics of plasma electrons made it possible to reveal the physical mechanisms behind their heating in a porous medium.

Original language	English (US)
Pages (from-to)	38-42
Number of pages	5
Journal	Quantum Electronics
Volume	35
Issue number	1
DOIs	https://doi.org/10.1070/QE2005v035n01ABEH002892
State	Published - Jan 2005
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Statistical and Nonlinear Physics
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Keywords

Femtosecond pulses
Laser-produced plasmas
Nanostructured targets

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10.1070/QE2005v035n01ABEH002892

Cite this

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title = "Efficient heating of near-surface plasmas with femtosecond laser pulses stimulated by nanoscale inhomogeneities",

abstract = "The interaction of intense (1016 - 1018 W cm 2) ultrashort (50 - 200 fs) laser pulses with the dense plasmas produced at the surfaces of the porous target is numerically simulated by the particle-in-cell technique. Nanostructure-enhanced absorption of femtosecond pulses in high-porous (P > 4) targets is demonstrated. We show that the presence of plasma inhomogeneities essentially alters the heating of plasma electrons and ions; in particular, it stimulates the significant increase in the mean energy and number of hot electrons. The numerical investigation of the dynamics of plasma electrons made it possible to reveal the physical mechanisms behind their heating in a porous medium.",

keywords = "Femtosecond pulses, Laser-produced plasmas, Nanostructured targets",

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year = "2005",

month = jan,

doi = "10.1070/QE2005v035n01ABEH002892",

language = "English (US)",

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T1 - Efficient heating of near-surface plasmas with femtosecond laser pulses stimulated by nanoscale inhomogeneities

AU - Mikhailova, Yu M.

AU - Platonenko, V. T.

AU - Savel'ev, A. B.

PY - 2005/1

Y1 - 2005/1

N2 - The interaction of intense (1016 - 1018 W cm 2) ultrashort (50 - 200 fs) laser pulses with the dense plasmas produced at the surfaces of the porous target is numerically simulated by the particle-in-cell technique. Nanostructure-enhanced absorption of femtosecond pulses in high-porous (P > 4) targets is demonstrated. We show that the presence of plasma inhomogeneities essentially alters the heating of plasma electrons and ions; in particular, it stimulates the significant increase in the mean energy and number of hot electrons. The numerical investigation of the dynamics of plasma electrons made it possible to reveal the physical mechanisms behind their heating in a porous medium.

AB - The interaction of intense (1016 - 1018 W cm 2) ultrashort (50 - 200 fs) laser pulses with the dense plasmas produced at the surfaces of the porous target is numerically simulated by the particle-in-cell technique. Nanostructure-enhanced absorption of femtosecond pulses in high-porous (P > 4) targets is demonstrated. We show that the presence of plasma inhomogeneities essentially alters the heating of plasma electrons and ions; in particular, it stimulates the significant increase in the mean energy and number of hot electrons. The numerical investigation of the dynamics of plasma electrons made it possible to reveal the physical mechanisms behind their heating in a porous medium.

KW - Femtosecond pulses

KW - Laser-produced plasmas

KW - Nanostructured targets

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Efficient heating of near-surface plasmas with femtosecond laser pulses stimulated by nanoscale inhomogeneities

Abstract

All Science Journal Classification (ASJC) codes

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