The One-Dimensional Boltzmann Equation for the Heat Transport Induced by Ultra-Short Laser Pulses

摘要

In this paper the Boltzmann transport equation for thermal processes induced by ultra-short laser pulses is described and solved. For thermal processes where the duration of the laser pulse (femtoseconds - attoseconds) is shorter than the relaxation time, the solution of Boltzmann equation differs from the solution of the Fourier equation. In this paper the equation for the density current of the heat carrier is obtained. It is shown that for thin one-dimensional structures the current strongly depends on the scattering mechanism of the heat carriers.