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

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

2003-06-27

arxiv.org/abs/cond-mat/0306700v1

Physics

Condensed Matter

Materials Science

14 pages

Scientific paper

In this paper the Boltzmann transport equation for thermal processes induced by ultra-short laser pulses is formulated and solved. For thermal process 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 formula for 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. Key words: Boltzmann equation; Ultra-short laser pulses; Nonhomogenous materials.

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