Title :
Laser initiation and radiofrequency sustainment of high pressure plasmas
Author :
Akhtar, K. ; Scharer, J. ; Tysk, S. ; Denning, Mark
Author_Institution :
Wisconsin Univ., Madison, WI, USA
Abstract :
Summary form only given, as follows. We present results of 193 nm excimer laser pre-ionization of a low ionization potential seed gas in argon and air components at high pressures. The laser pre-ionization with 10 mTorr of tetrakis-dimethyl-amino-ethylene (TMAE) allows much lower RF powers to sustain the plasma discharge at densities in the 10/sup 12-13//cc range in argon and air components in the range of 10-760 Torr with radiofrequency (RF) powers in the 2-10 kW range.
Keywords :
high-frequency discharges; high-pressure techniques; organic compounds; photoionisation; plasma production by laser; 10 mtorr; 10 to 760 torr; 193 nm; 2 to 10 kW; TMAE; excimer laser preionization; high pressure plasmas; laser initiation; potential seed gas; radiofrequency sustainment; tetrakis-dimethyl-amino-ethylene; Atmospheric-pressure plasmas; Cathodes; Gas lasers; Laser theory; Nitrogen; Plasma measurements; Plasma sources; Plasma stability; Plasma temperature; Radio frequency;
Conference_Titel :
Plasma Science, 2003. ICOPS 2003. IEEE Conference Record - Abstracts. The 30th International Conference on
Conference_Location :
Jeju, South Korea
Print_ISBN :
0-7803-7911-X
DOI :
10.1109/PLASMA.2003.1228581
