Title :
Plasma Density inside Femtosecond Laser Filaments in Air
Author :
Bernhardt, J. ; Liu, W. ; Théberge, F. ; Châteauneuf, M. ; Dubois, J. ; Chin, S.L.
Author_Institution :
Univ. Laval, Quebec
Abstract :
We present a spectroscopic way to measure the plasma density of femtosecond laser filaments in air by using Stark broadening of the oxygen atomic fluorescence line. This method could also be applied to multiple filamentation.
Keywords :
Stark effect; air; filamentation instability; high-speed optical techniques; plasma density; spectral line broadening; Stark broadening; air; femtosecond laser filaments; oxygen atomic fluorescence line; plasma density measurement; Atomic measurements; Density measurement; Gas lasers; Optical pulses; Plasma density; Plasma measurements; Pollution measurement; Quantum cascade lasers; Spectroscopy; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/CLEO.2007.4453652
