STUDY OF LASER PROPAGATING THROUGH A CYLINDRICAL HOHLRAUM USED IN INDIRECTDRIVEN LASER FUSION

Usnig diffraction integral theory, the propagation properties of laser beams passing through a cylindrical hohlraum in indirect-driven laser fusion have been studied. The intensity distributions at the entrance hole and on the wall of the cylindrical hohlraum have been given. Our results have been compared with those calculated using geometric optics, thus the condition, under which geometric optics is valid, has been obtained．