Abstract
Optically pumped lasers that use metastable excited states of Ar have been demonstrated using both pulsed and CW excitation. In terms of Paschen labeling of the states of Ar, the laser system uses excitation of the transition, and lases on the line. Collisional transfer of population from to is achieved using He as the buffer gas. For the purpose of modeling and developing this laser, rate constants for state-to-state transfer in mixtures are needed. As the level can radiate down to , this lower level also plays a significant role in the laser kinetics. Consequently, rate constants for the relaxation of by Ar and He are also required. In the present study we have used pulsed laser excitation techniques to measure rate constants of relevance to the optically pumped metastable Ar laser.
© 2014 Optical Society of America
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