title: Collisional absorption in aluminum.
abstract: The interaction of ultrashort laser pulses with matter is a topic of growing interest. In particular, recent developments on free-electron lasers have opened an unexplored field in which many interesting physical phenomena are to be expected. Since hydrodynamic descriptions of the interaction process need a microscopic "input," a quantum statistical theory of energy absorption by matter is required. We present a kinetic theory of collisional absorption in dense plasmas and analyze the electron-ion collision frequency in warm dense aluminum in dependence on laser frequency and temperature.
authors.affiliation: Universität Rostock, Institut für Physik, D-18051 Rostock, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Semkat
authors.forename: R
authors.initials: R
authors.lastname: Redmer
authors.forename: Th
authors.initials: T
authors.lastname: Bornath