The influence of underdense polymer target with/without high-Z nanoparticles on laser radiation absorption and energy transport

Fabrication methods for low-density fine-structure (cell size $<$1 $\mu$m) 3-D networks of cellulose triacetate (TAC) are developed. Target densities ranged 4-20 mg/cc, similar polymer structures were produced both with no load and with high-Z cluster dopant with concentration up to 30%. Foams of varying density down to 0.25 plasma critical density at the third harmonic of iodine laser wavelength are supplied for laser shots. Experiments with underdense foam targets with and without clusters irradiated on the PALS laser facility are analyzed preliminary, showing strong influence of target structure on process of laser light absorption. Heat and radiation transport in such targets are considered

Composition, density and structure dependent neutron yields from deuterated targets in high-intensity laser shot

Experimental studies are presented on composition, density and structure influence onto the neutron yield resulting from deuterium-containing target interaction with laser light of 10$^{18}$ W/cm$^{2}$. Experimental data are compared with theoretical and simulation results

Study of physical processes in laser-irradiated porous targets of different microstructure

New results obtained in experiments on laser irradiation (${\rm I}=10^{14}$ W/cm$^{2}$, ${\rm \lambda} =1.055 {\rm \mu}$m) of low-density (1-30 mg/cm$^{3})$ fibrous and foam-like materials are presented and discussed. The effect of low-density material microstructure of irradiated samples on physical processes in high-temperature plasma was investigated. Using a variety of complementary X-ray and optical methods the pronounced effect of material microstructure on the parameters and dynamics of produced plasma was found