Title :
Ultra-high-intensity laser propagation through underdense plasma
Author :
Najmudin, Z. ; Tatarakis, M. ; Krushelnick, K. ; Clark, E.L. ; Malka, V. ; Faure, J. ; Dangor, A.E.
Author_Institution :
Blackett Lab., Imperial Coll. of Sci., Technol. & Med., London, UK
fDate :
2/1/2002 12:00:00 AM
Abstract :
Picosecond resolution shadowgraphy is a powerful tool for measurement of high-intensity laser propagation instabilities through underdense plasma. It is shown that as the plasma density increases, the laser beam is subject to severe filamentation instabilities-likely due to the effect of stimulated Raman side-scattering. At higher plasma densities, scattering and absorption are so severe that the propagation distance of the high intensity laser pulse is reduced
Keywords :
filamentation instability; plasma instability; plasma light propagation; stimulated Raman scattering; absorption; filamentation instabilities; high intensity laser pulse; high-intensity laser propagation instabilities; picosecond resolution shadowgraphy; plasma densities; plasma density; propagation distance; stimulated Raman side scattering; ultra-high-intensity laser propagation; underdense plasma; Electrons; Gas lasers; Laser beams; Optical propagation; Particle beams; Plasma accelerators; Plasma density; Plasma measurements; Plasma sources; Plasma waves;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2002.1003915
