Reflectivity in shock wave fronts of xenon

Dynamical Collision Frequency in Warm Dense Matter: Exemplary Application to Plasma Reflectivity

“…Additionally, experiments with other wavelengths are planned [22], which will allow for an even more detailed analysis of the density profile. Figure 3 shows the optimal profile in comparison to the profile shape, that has been determined for the case of perpendicular incidence by RAITZA et al [13,23]. Obviously, the slope and shape are similar, although the width differs by approximately 0.3 μm due to a pronounced low-density region in the older profile.…”

“…RAITZA et al [13] adapted the idea of a FERMI-like profile and constructed a model with an asymmetric shape. The profile parameters are functions of the final free electron density n e and have been fit to the experimental data to achieve an overall good agreement between theoretical curves and experimental data points for the reflectivity at all three wavelengths within the experimental error bars.…”

Optical Properties of Model Moderately Coupled Plasmas

“…Measurement [26] and modelling [14,27] of the coefficient of reflectivity of non-ideal plasmas have become a matter of significant importance in plasma optics. The reason is that the reflectivity is relatively easy to measure and it can be considered as a test for different models of the plasma complex dielectric function, ε(k, ω).…”

“…The reflecting plasma surface is considered a plane, orthogonal to the oncoming laser ray and possessing no significant width with some non-uniform distribution of the plasma thermodynamic parameters. Models presuming the existence of a relatively broad non-uniform surface layer, see [27] and references therein, employ up to three adjustable parameters to reproduce the experimental data of [26] and can hardly be considered satisfactory. Alternative approaches [14] also involve some adjustment procedure with a single parameter though, and are to be improved as well.…”

“…Instead of modelling the dielectric function within the generalized Drude-Lorentz (GDL) approximation [26,27], which relates ε(ω) = ε(k → 0, ω) to the dynamic collision frequency ν (ω):…”