Manfred Schlanges

Publications (2)2.26 Total impact

• Source

  Available from: Michael Bonitz

  Article: Partially ionized plasmas in electromagnetic fields

  Dietrich Kremp, Dirk Semkat, Thomas Bornath, Michael Bonitz, Manfred Schlanges, Paul Hilse
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  ABSTRACT: The interaction of partially ionized plasmas with an electromagnetic field is investigated using quantum statistical methods. A general statistical expression for the current density of a plasma in an electromagnetic field is presented and considered in the high field regime. Expressions for the collisional absorption are derived and discussed. Further, partially ionized plasmas are considered. Plasma Bloch equations for the description of bound-free transitions are given and the absorption coefficient as well as rate coefficients for multiphoton ionization are derived and numerical results are presented. Comment: 18 pages, 8 figures, accepted for publication in J. Phys.: Conf. Ser
  02/2006;
• Article: Collisional absorption of dense plasmas in strong laser fields: quantum statistical results and simulation.

  Paul Hilse, Manfred Schlanges, Thomas Bornath, Dietrich Kremp
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  ABSTRACT: Collisional absorption of dense fully ionized plasmas in strong laser fields is investigated using quantum statistical methods as well as molecular dynamics simulations. For high-frequency fields, quantum statistical expressions for the electrical current density and the electron-ion collision frequency are presented. Strong correlations are taken into account and their influence on the absorption rate is discussed. The expressions are valid for arbitrary field strength assuming the nonrelativistic case. In addition, molecular dynamics simulations were performed to calculate the heating of dense plasmas in laser fields. Comparisons with the analytic results for different plasma parameters are given. There are considered the cases of isothermal plasmas as well as two-temperature plasmas. Furthermore, results for the velocity distribution function under the influence of intense laser fields are presented which show a different behavior in comparison to weak fields.
  Physical Review E 06/2005; 71(5 Pt 2):056408. · 2.26 Impact Factor