Title :
Characterization of the expansion of an aluminum laser-induced plasma in ambient air by fast photography
Author :
Barthélemy, Olivier ; Margot, Joëlle ; Chaker, Mohamed
Author_Institution :
Dept. de physique, Univ. de Montreal, Que., Canada
fDate :
4/1/2005 12:00:00 AM
Abstract :
Laser-induced aluminum plasma in ambient air at a fluence of 10 J/cm2 is observed by means of fast photography. Plasma expansion is found to be nearly hemispherical. The existence of an air plasma at the edge of the Al plasma is suggested by comparing spectrally resolved and unresolved pictures.
Keywords :
aluminium; high-speed optical techniques; plasma boundary layers; plasma flow; plasma production by laser; Al; Al plasma edge; air plasma; aluminum laser-induced plasma; ambient air; fast photography; hemispherical plasma expansion; Aluminum; Delay; Focusing; Geometrical optics; Laser ablation; Photography; Plasma density; Plasma devices; Plasma temperature; Spectroscopy; Expansion geometry; fast photography; laser-induced plasma;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2005.845011
