Works on laser-matter interaction program at the Limeil-Valenton center

The experimental works on laser interaction and laser implosion at Limeil have been made with both of the power lasers P 102 (giving a target 20 J at lambda = 0,35μm) and octal (360 J in 280 ps and 900 J in 900 ps at lambda = 1,06 μm). Experiments on plane targets allowed to study the spatial modulation effect of light flux density; optical thickness of an aluminium plasma has been measured with the help of a particular geometry target. In microballoon implosion experiments, a noticeable increasing of neutron emission have been verified when the target was recovered with high density and Z coating on the theoretical side, a particular attention have been given to interaction (resonant absorption saturation mechanisms, linear theory of Raman and two-plasmon effect, stimulated Brillouin scattering saturation), to transport (plasma expansion at two electron temperature, self-consistent description of thermal and suprathermal electrons) and to the physics out of HETL