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Electron-lattice kinetics of metals heated by ultrashort laser pulses

  • L. A. Falkovsky
  • E. G. Mishchenko
Solids

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 electron-phonon 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.

Keywords

Spectroscopy Field Theory Laser Pulse Elementary Particle Quantum Field Theory 
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Copyright information

© American Institute of Physics 1999

Authors and Affiliations

  • L. A. Falkovsky
    • 1
  • E. G. Mishchenko
    • 1
  1. 1.Landau Institute for Theoretical PhysicsRussian Academy of SciencesMoscowRussia

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