摘要：On the basis of calculated values for the conductivity in an external electric field, we determined the high-frequency characteristics of plasmas under extreme conditions (e. g. dense plasma focus device). The examined range of frequencies covers the IR, visible, UV, XUV up to X regions and the considered electronic number density and temperature are in the ranges of 1021 cm-3 ≤ Ne ≤ 5×1024 cm-3 and 2×104 K ≤ T ≤ 106 K, respectively. The data obtained using this method are important for plasma focus research, laboratory plasma research, investigation of atmosphere plasmas of astrophysical objects like white dwarfs with different atmospheric compositions. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 176002 Grant no. III44002]
