An investigation was made of lasers utilizing the F 2 , F 2 + and F 2 − centers emitting in the spectral range 0.6–1.26 μ. Quasi-cw stimulated emission from the F 2 − centers was obtained as a result of pumping with a cw YAG laser ( λ = 1.06 μ). Thermal tuning of the emission frequency was observed and a qualitative explanation of this effect was found. The time stability of the centers and the influence of the pump radiation were studied. A fairly simple method for restoring the F 2 + centers was found.
No takes yet. Share an insight, caveat, or question.
Gusev et al. (1978) studied this question.