Skin effect, ion-acoustic turbulence, and anomalous transport in a nonisothermal solid-state plasma generated by a high-power femtosecond laser

We propose an interpretation of the experimental data reported by Milchberg , Freeman et al. [1] on the absorption of intense 400-fs laser radiation pu lses in an aluminum target. It is shown that the electric conductivity of a nonisothermal aluminum plasma possessing a solid-state density in these ex periments was determined by the ion-acoustic oscillations (ion-acoustic tur bulence). It is therefore necessary to study theoretically the ion-acoustic turbulence effect in a nonisothermal plasma possessing solid-state density . Possible approaches to a theoretical description of this effect and the i nteractions of a such a plasma with high-power ultrashort laser pulses are discussed. (C) 2001 MAIK "Nauka / Interperiodica".