Evidence for Self-Focusing or Filamentation from X-Ray, 3/2 omega sub 0 , and 2 omega sub 0 Emission

摘要

With long pulse, moderate intensity (approx. = 10 exp 13 W/cm exp 2 ) Nd-laser irradiation of flat targets, time-integrated images of 3/2 omega sub 0 and 2 omega sub 0 emission reveal filaments along the laser axis. Combined with fine-scale structure found in time-integrated images of x-ray emission, these filaments suggest self-focusing of hot spots in the incident beam. (ERA citation 06:013226)