Ym. Andreev et al., GENERATION OF THE 2ND-HARMONIC OF PULSED CO2-LASER RADIATION IN AGGASE2 AND ZNGEP2 SINGLE-CRYSTALS, Laser physics, 5(5), 1995, pp. 1014-1019
The efficient second harmonic of a pulsed CO2-laser radiation with the
pulse repetition rate up to 300 Hz was implemented in ZnGeP2 and AgGa
Se2 single crystals. Comparison of ZnGeP2 and AgGaSe2 as materials for
the generation of the second harmonic of CO2-laser radiation was perf
ormed. The efficiency of second-harmonic generation in ZnGeP2 was show
n to be constant up to the repetition rate of 300 Hz.