抄録
Recently much attention has focused on the laser fusion scheme using high density plasma produced by the implosion. Institute of Laser Engineering, Osaka Universityscientific feasibility experiment on laser fùsion has come on a time schedule. But physics of the interaction betweenlaser and plasma, the technique of the high compression and the development of high power lasers are still important problems to be studied for the progress of laser fusion.
As for the coupling of laser ileit and plasma, we have performed the laser bombarding experiments on the hydrogen and deuterium stick targets using a glass laser system “LEKKO-I” energy 50J in nanosecond pulse. The decrease of the re-flectivity has appeared at the laser intensity of one order larger than the threshold of the parametric instability. The phase modulation of the scattered light due to modulational instability was found.
