Electronlattice kinetics of metals heated by ultrashort laser pulses
Abstract
We propose a kinetic model of transient nonequilibrium phenomena in metals exposed to ultrashort laser pulses when heated electrons affect the lattice through direct electronphonon interaction. This model describes the destruction of a metal under intense laser pumping. We derive the system of equations for the metal, which consists of hot electrons and a cold lattice. Hot electrons are described with the help of the Boltzmann equation and equation of thermoconductivity. We use the equations of motion for lattice displacements with the electron force included. The lattice deformation is estimated immediately after the laser pulse up to the time of electron temperature relaxation. An estimate shows that the ablation regime can be achieved.
 Publication:

Soviet Journal of Experimental and Theoretical Physics
 Pub Date:
 January 1999
 DOI:
 10.1134/1.558768
 arXiv:
 arXiv:condmat/9902009
 Bibcode:
 1999JETP...88...84F
 Keywords:

 Condensed Matter  Statistical Mechanics
 EPrint:
 7 pages