MICROWAVE PULSE EXCITED ARGON ION LASER.

In the work reported in this paper the authors measured the electron density and temperature under microwave pulsed (duration of less than 2 mu sec) discharges, which can avoid variation of the gas temperature and ionization accumulation during the discharge. The electron density was found to be constant when the partial pressure of Ar exceedscertain value. The authors also derived a rate equation and clarified the relations between various plasma parameters and the output power. They evaluated the laser output power as a function of the gas pressure and the He partial pressure, which agrees well with the observed values. Finally, the properties of the laser they developed are also discussed.