Title :
The time-dependent development of the macroscopic instability of a XeCl* laser discharge
Author :
Bähr, Martin ; Bötticher, Woldemar ; Choroba, Stefan
Author_Institution :
Inst. fur Plasmaphys., Hannover Univ., Germany
fDate :
4/1/1991 12:00:00 AM
Abstract :
The discharge properties of a small XeCl* laser with a 1×1×20 cm3 lasing volume are investigated. The laser uses the X-ray-triggered switchless mode and is operated with Ne as buffer gas at 6 bar (Xe: 100 mbar HCl: 2.5-20 mbar). The macroscopic development of the discharge cross section observed by streak exposures and interferometric measurements is compared with a simplified one-dimensional model described. The model accounts for the field inhomogeneity of the Chang electrodes and the spatial variation of the preionization. With the help of this model, mechanisms responsible for the observed macroscopic instabilities are explained
Keywords :
discharges (electric); excimer lasers; xenon compounds; 100 mbar; 2.5 to 20 mbar; 6 bar; Chang electrodes; Ne buffer gas; X-ray-triggered switchless mode; XeCl; XeCl* laser discharge; field inhomogeneity; interferometric measurements; macroscopic instability; one-dimensional model; preionization; streak exposures; time-dependent development; Cathodes; Current density; Electrodes; Gas lasers; Human computer interaction; Laser beams; Laser modes; Nonuniform electric fields; Surface discharges; X-ray lasers;
Journal_Title :
Plasma Science, IEEE Transactions on
