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 :
Centre d¿Optique, Photonique et Laser (COPL) et Departement de Physique, de Genie Physique et d¿Optique, Universite Laval, Quebec, QC, G1K 7P4, Canada
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 :
Atomic measurements; Density measurement; Gas lasers; Optical pulses; Plasma density; Plasma measurements; Pollution measurement; Quantum cascade lasers; Spectroscopy; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431429
