Collisionless absorption of intense laser radiation in nanoplasma

Journal Article · Sat Jun 30 00:00:00 EDT 2007 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2007V037N06ABEH013428· OSTI ID:21466681

Zaretsky, D F ^[1]; Korneev, Philipp A; Popruzhenko, Sergei V ^[2]

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1. Russian Research Centre 'Kurchatov Institute', Moscow (Russian Federation)
2. Moscow Engineering Physics Institute (State University), Moscow (Russian Federation)

The rate of linear collisionless absorption of an electromagnetic radiation in a nanoplasma - classical electron gas localised in a heated ionised nanosystem (thin film or cluster) irradiated by an intense femtosecond laser pulse - is calculated. The absorption is caused by the inelastic electron scattering from the self-consistent potential of the system in the presence of a laser field. The effect proves to be appreciable because of a small size of the systems. General expressions are obtained for the absorption rate as a function of the parameters of the single-particle self-consistent potential and electron distribution function in the regime linear in field. For the simplest cases, where the self-consistent field is created by an infinitely deep well or an infinite charged plane, closed analytic expressions are obtained for the absorption rate. Estimates presented in the paper demonstrate that, over a wide range of the parameters of laser pulses and nanostructures, the collisionless mechanism of heating electron subsystem can be dominant. The possibility of experimental observation of the collisionless absorption of intense laser radiation in nanoplasma is also discussed. (interaction of laser radiation with matter)

• OSTI ID: 21466681
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 37, Issue 6; Other Information: DOI: 10.1070/QE2007v037n06ABEH013428; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABSORPTION
COLLISIONLESS PLASMA
DISTRIBUTION FUNCTIONS
ELECTRON GAS
ELECTRONS
LASER RADIATION
LASERS
NANOSTRUCTURES
PULSES
SCATTERING
SELF-CONSISTENT FIELD
THIN FILMS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FILMS
FUNCTIONS
LEPTONS
PLASMA
RADIATIONS
SORPTION