Title :
The (critical) clamped intensity of a plasma filament induced by a femtosecond laser pulse in helium
Author :
Bernhardt, J. ; Liu, W. ; Sharifi, M. ; Xu, H.L. ; Theberge, F. ; Chin, S.L.
Author_Institution :
Dept. de Phys., Univ. Laval, Quebec City, QC
Abstract :
The clamped intensity of a plasma-filament induced by a femtosecond laser pulse in one-atmospheric-pressure helium was measured. The measured electron density of ~7times1017cm-3 corresponds to a clamped intensity of about 7.8times1014W/cm2.
Keywords :
electron density; helium; high-speed optical techniques; plasma density; plasma diagnostics; plasma nonlinear processes; plasma production by laser; He; clamped intensity; electron density; femtosecond laser pulse; helium; plasma filament; plasma intensity; Density measurement; Electrons; Fluorescence; Helium; Optical pulses; Plasma diagnostics; Plasma measurements; Pollution measurement; Pulse measurements; Ultrafast optics; (260.5950) Self-focusing; (280.5395) Plasma diagnostics;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
