Dynamics of subpicosecond laser ablation examined by moments technique

Boris S. Luk'yanchuk; Sergei I. Anisimov; Yongfeng Lu

doi:10.1117/12.431216

26 June 2001 Dynamics of subpicosecond laser ablation examined by moments technique

Boris S. Luk'yanchuk, Sergei I. Anisimov, Yongfeng Lu

Proceedings Volume 4423, Nonresonant Laser-Matter Interaction (NLMI-10); (2001) https://doi.org/10.1117/12.431216
Event: Nonresonant Laser-Matter Interaction (NLMI-10), 2000, St. Petersburg, Russian Federation

Abstract

The interaction of subpicosecond laser pulses with metals is studied theoretically using phenomenological two-temperature model. A semi-analytical approach to a quantitative analysis of electron and lattice temperatures is presented. Using the nonstationary averaging technique the coupled system of nonlinear heat equations for electron and lattice temperatures is transformed into the set of four ordinary differential equations. Resulting system is convenient for the fast analysis of nonstationary laser heating and laser ablation with ultrashort laser pulses.

Citation Download Citation

Boris S. Luk'yanchuk, Sergei I. Anisimov, and Yongfeng Lu "Dynamics of subpicosecond laser ablation examined by moments technique", Proc. SPIE 4423, Nonresonant Laser-Matter Interaction (NLMI-10), (26 June 2001); https://doi.org/10.1117/12.431216

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