Optical reflectivity based on the effective interaction potentials of xenon plasma

Abstract

New results on the reflectivity and Brewster angle of dense xenon plasmas based on of the effective interaction potentials (which take into account static and dynamic screening effects) at pressures of 1.6–20 GPa and temperatures of ∼30,000 K are presented. Using Fresnel formulas, the reflectivity coefficients for the s‐ and p‐polarized laser waves are investigated. The influence of atoms, which was taken into account at the level of collision frequency via an effective interaction potential, is proven to be crucial for understanding the reflection process.

Kinetic ionization and recombination coefficients in the dense semiclassical plasmas on the basis of the effective interaction potential

“…In this case, if the plasma is not degenerate yet, then it can be considered as semiclassical and the effects of degeneration can be neglected while effects of diffraction or symmetry are taken into consideration. The effective potential of electron-ion interactions, taking into accounts the effects of static screening and diffraction [5][6][7][8][9][10][11][12][13][14], can be written as…”

“…Femtosecond laser pulses with high intensities are available now to produce hot dense plasmas in the laboratory. The development in the fields of laser produced plasmas [1] and heavy ion beam plasma [2] interactions led to a growing interest in the kinetics of ionization [3] and recombination [3][4] and also in other processes in the dense semiclassical plasmas [5][6][7][8][9][10][11].…”

“…In the present work we have used this approach to calculate the cross section of the electron capture by the hydrogen ion (proton) on the basis of the numerical simulation of the equations of electron motion near proton. The effective potential of electron-ion interactions, taking into account the effects of static screening and diffraction [5][6][7][8][9][10][11][12][13][14] has been used for this goal.…”

Bound states of the hydrogen atom in high‐density plasmas

“…For semiclassical plasma, we constructed effective models of plasma particle interactions [13,14] and studied the plasma properties on their basis. [15][16][17][18][19][20][21][22][23][24][25][26][27] These models take into account not only the screening effect, described by the Debye length but also the quantum mechanical effect of diffraction. As the density increases to values corresponding to the degenerate plasma, along with the diffraction effect, it becomes necessary to take into account the degeneracy of electrons.…”