NDLI: The interaction of low-intensity femtosecond laser pulses with a copper foil

Content Provider	IEEE Xplore Digital Library
Author	Karlykhanov, N.G. Lykov, V.A. Sapozhnikov, A.T. Kirkwood, S. Tsui, Y.Y. Fedosejev, R.
Copyright Year	2008
Description	Author affiliation: Russian Fed. Nucl. Center, All-Russian NII of Tech. Phys. of E.I. Zababakhin, Snezhinsk (Karlykhanov, N.G.; Lykov, V.A.; Sapozhnikov, A.T.)
Abstract	Summary form only given.The results of experimental and theoretical research on interaction of femtosecond laser pulses at a wavelength 800 nm and 400 nm with a copper foil are presented. Ti:Sapphire laser intensity on foil surface was in the rang of $10^{12}-310^{14}$ $W/cm^{2}$ in these experiments that were carried out at University of Alberta (Canada). The calculations of femtosecond laser pulses interaction with a matter and study of the foil blow-off are performed with using of ID ERA code developed in RFNC-VNIITF. The hydrodynamic and electron conductivity with degeneracy effects were taken into account. Wide-range equations of state for solid, gas and plasma were used in ERA-code simulations. Two- temperature case was considered in these calculations by taking into account of energy exchange between electrons and phonons (ions). Laser energy absorption was calculated from Helmholtz equation with complex dielectric permittivity. The scattering of electrons on phonons and free electrons was taken into account in calculation of dielectric permittivity. The results of ERA code calculations are in a good agreement with data on laser light reflection that have been obtained earlier in experiments on interaction of 150-fs laser pulses with copper foils at University of Alberta. ERA code simulations of foil dynamic under action of 100-fs laser pulse with wavelength of 800 nm and intensity of $310^{13}W/cm^{2}$ were performed as with low-intensity nanosecond prepulse as without it. It is shown that nanosecond prepulse at intensity of $10^{8}$ $W/cm^{2}$ - $10^{9}$ $W/cm^{2}$ have no significant influence on copper foils.
Starting Page	1
Ending Page	1
File Size	60131
Page Count	1
File Format	PDF
ISBN	9781424419296
ISSN	07309244
DOI	10.1109/PLASMA.2008.4590996
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-15
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Copper Physics Laser theory
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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