Title :
Argon excimer spectra excited in pulsed discharges with supersonic expansion
Author :
Efthimiopoulos, T. ; Stoicheff, B.P.
Author_Institution :
Dept. of Phys., Crete Univ., Greece
fDate :
6/1/1992 12:00:00 AM
Abstract :
Emission spectra of the Ar2 band at 128 nm, excited in a pulsed discharge with supersonic jet expansion, have been investigated under a range of gas pressures and voltages. Quartz, ceramic, and tungsten nozzles have been used. A significant observation is the narrow bandwidth of 9 nm at ~1 atm nozzle pressure, which decreases to 7.2 nm (FWHM) at 6.6 atm. Such a narrow bandwidth demonstrates that under the present experimental conditions, the observed band arises from the lowest vibrational levels of the excimer state
Keywords :
argon; discharges (electric); jets; molecular excited states; molecular vibration; ultraviolet spectra of diatomic inorganic molecules; 1 atm; 128 nm; 6.6 atm; Ar2 excimer emission spectra; SiO2; UV; W; ceramic; excimer laser gas spectra; excimer state; gas pressures; lowest vibrational levels; narrow bandwidth; nozzle pressure; pulsed discharge; pulsed discharges; quartz; supersonic expansion; supersonic jet expansion; voltages; Argon; Bandwidth; Ceramics; Electrodes; Gas lasers; Laser excitation; Laser transitions; Pump lasers; Tungsten; Voltage;
Journal_Title :
Quantum Electronics, IEEE Journal of
