Electrical Conductivity of a Dense Plasma

Absorption of Ultrashort Laser Pulses by Solid Targets Heated Rapidly to Temperatures 1–1000 eV

“…The development of high-power ultrashort pulse lasers has made possible a new type of laboratory investigation of the physical properties of matter heated rapidly to temperatures from 1 to 1000 eV, while retaining a density near that of the initial solid target [1,2]. Even before the development of subpicosecond pulse lasers it was shown that the reAectivity of a 30 ps probe pulse provides information on the ac electrical conductivity of the target plasma [3]. The first subpicosecond reAectivity experiments by Milchberg et al [4], Fedosejevs et al [5], Murnane, Kapteyn, and Falcone [6], and Teubner et al [7] measured the reAectivity of aluminum and other materials at various conditions of laser intensity, pulse length, and prepulse.…”

Fokker-Planck equation for moderately coupled plasmas

“…Therefore, in future work it will be important to include higher-order terms of the electron distribution function as well as retaining the non-linearities of the Boltzmann equation. Such transport coefficients could be then applied to a variety of plasmas, such as short-pulse laser plasmas [19][20][21][22],…”

Ultrashort-Pulse Laser Ellipsometric Pump-Probe Experiments on Gold Targets

“…Similar investigations of laser-heated materials at high energy density, such as the study of the resistivity of hot dense matter [1,2], may open a new field of research and give useful information about the transition between solid-state and plasma physics.…”

“…Many previous ultrashort-pulse laser experiments have been performed with aluminum targets [1,2,6,9]. For the most part, these were successfully modeled using the Drude theory for an ionized (metallic) plasma.…”