A wide-range model for simulation of aluminum plasma produced by femtosecond laser pulses

31st International Conference on Equations of State for Matter

Povarnitsyn, M.E.^1 ; Andreev, N.E.^1

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bldg 2, Moscow

125412, Russia^1

关键词: Aluminum plasmas;    Angular dependence;    Electron thermal conductivity;    Electron-ion collision;    Hydrodynamic motion;    Laser energy absorption;    Modeling for simulations;    Reflectivity coefficients;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/774/1/012105/pdf
DOI  :  10.1088/1742-6596/774/1/012105

来源: IOP

【 摘 要 】

We use a wide-range model of thermodynamic, transport and optical properties for simulation of laser-induced dynamics of aluminum plasma. The model describes the laser energy absorption, electron thermal conductivity and two-temperature effects of electron-ion collisions as well as hydrodynamic motion of matter. The model successfully describes experiments on self-reflectivity in wide range of intensities, and angular dependence of reflectivity coefficient for S- and P-polarized pulses. Thus, the model can be used for prediction of the main parameters of aluminum plasma such as temperature, density, velocity, mean charge of ions for optimization of planned experiments.