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Argon excimer spectra excited in pulsed discharges with supersonic expansion

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2 Author(s)
T. Efthimiopoulos ; Dept. of Phys., Crete Univ., Greece ; B. P. Stoicheff

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

Published in:

IEEE Journal of Quantum Electronics  (Volume:28 ,  Issue: 6 )