Title :
Visualization of the Nonlinear Laser-Plasma Expansion
Author :
Láska, L. ; Krouský, E. ; Jungwirth, K. ; Krása, J. ; Pfeifer, M. ; Rohlena, K. ; Skála, J. ; Ullschmied, J. ; Velyhan, A.
Abstract :
The high-power iodine laser PALS is used to study nonlinear processes in a laser-produced plasma. Longitudinal structures of the expanding plasma, recorded by using an X-ray streak camera on a time scale ~ 2 ns, are presented. Various bright spots, expansion-path curvature, and even their splitting are shown. These phenomena are ascribed to the effect of magnetic field, self-generated at high laser intensities.
Keywords :
plasma diagnostics; plasma nonlinear processes; plasma production by laser; streak cameras; PALS; X-ray streak camera; bright spots; expansion path curvature; high power iodine laser; laser produced plasma; magnetic field effect; nonlinear laser-plasma expansion visualization; Ions; Laser beams; Laser theory; Magnetic resonance imaging; Particle beams; Plasmas; X-ray lasers; Laser plasma; nonlinear processes; pinching; self-focusing;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2163422
