ABSTRACT
In laser fusion, intense beams are focused on a pellet surface in order to generate a hot dense plasma at a center of the pellet. The critical elements and the above are related to the inverse bremsstrahlung, resonance absorption, parametric decay instabilities, stimulated Brillouin scattering, heat flux inhibition by self-generated magnetic field, fraction of energy loss by fast ions and the electron and radiation heat transports. Critical element depends upon hot electron generation by resonance absorption, two plasmon decay, stimulated Raman scattering and hard X-ray generation near the critical surface. The filamentation, self-focusing, self-generated magnetic field and lateral heat transport are related to the critical element.
