WEIBEL INSTABILITY DUE TO ULTRA INTENSE LASER PLASMA INTERACTION RELEVANT TO FUSION

With the recent development of laser technology, the laser driven inertial confinement fusion has gained a lots of interest from the fusion community. Consequently it becomes also necessary to understand various physical processes including instabilities that may arise due to interaction of laser and plasma. In our present work we have studied the interaction of ultra-intense laser pulse with a rectangular plasma slab for both under-dense and over-dense case and observed the self generated multi mega-gauss magnetic field due to Weibel instability. The study of this kind of instability is very important in connection with fusion basically in fast ignition scheme (FIS) where it plays a very crucial role in heat deposition process from laser to fusion source.