DocumentCode
67938
Title
Investigations of Plasma Dynamics Within and After Laser Pulse Using Optical Streak Camera
Author
Jian Wu ; Wenfu Wei ; Zefeng Yang ; Xingwen Li
Author_Institution
State Key Lab. of Electr. Insulation & Power Equip., Xi´an Jiaotong Univ., Xi´an, China
Volume
42
Issue
10
fYear
2014
fDate
Oct. 2014
Firstpage
2586
Lastpage
2587
Abstract
Plasma dynamics within and after the laser pulse irradiation at different ambient gas pressures in air were investigated from the laser ablated Al plasma (1064 nm, 15 ns, and 1.8 J/mm2) using an optical streak camera. At 50 and 400 Pa, front positions of the fast moving part fitted well with the Drag model once the laser started. At 1 atm, multiple radiation regions caused by the laser-target ablation and air breakdowns were observed.
Keywords
aluminium; plasma diagnostics; plasma production by laser; Al; ambient gas pressures; drag model; laser ablated Al plasma; laser pulse irradiation; laser-target ablation; optical streak camera; plasma dynamics; pressure 1 atm; pressure 50 Pa; pressure 500 Pa; time 15 ns; wavelength 1.64 nm; Cameras; Gas lasers; Integrated optics; Laser ablation; Laser beams; Laser modes; Plasmas; Laser ablation; plasma measurements; plasma measurements.;
fLanguage
English
Journal_Title
Plasma Science, IEEE Transactions on
Publisher
ieee
ISSN
0093-3813
Type
jour
DOI
10.1109/TPS.2014.2330354
Filename
6842677
Link To Document