The interaction of laser radiation with explosively driven shock wave compressed Xe plasmas

31st International Conference on Equations of State for Matter

Zaporozhets, Yu.B.^1 ; Mintsev, V.B.^1 ; Gryaznov, V.K.^1 ; Reinholz, H.^2 ; Röpke, G.^2 ; Fortov, V.E.^3

Institute of Problems of Chemical Physics, Russian Academy of Sciences, Academician Semenov Avenue 1, Chernogolovka, Moscow Region

142432, Russia^1

University of Rostock, Universitätsplatz 3, Rostock

18051, Germany^2

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

125412, Russia^3

关键词: Behavior of matters;    Density of charges;    Extreme conditions;    Interpolation formulas;    Oblique incidence;    Plasma composition;    Polarized electromagnetic waves;    Reflectivity coefficients;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/774/1/012141/pdf
DOI  :  10.1088/1742-6596/774/1/012141

来源: IOP

【 摘 要 】

The analysis of the response of dense plasma to electromagnetic waves of moderate intensity can be used as a tool to investigate the validity of the physical models describing the behavior of matter under extreme conditions. Within this work the new experimental data on oblique incidence of polarized electromagnetic wave are presented. The study of polarized reflectivity properties of nonideal xenon plasma was accomplished using laser light at νlas= 2.83 × 1014s-1(λlas= 1064 nm) and νlas= 5.66 × 1014s-1(λlas= 532 nm). The measurements of polarized reflectivity coefficients of explosively driven dense plasmas have been carried out at incident angles up to θ = 78°. The plasma composition was calculated within a chemical picture. The integration of Maxwell equations to construct the spatial profile of the density of charge carriers of plasmas was based on an interpolation formula for DC conductivity.