BRIEF COMMUNICATIONS: Parametric conversion of infrared radiation in an AgGaS2 crystal
A computer calculation is reported of the main characteristics of a parametric converter of middle-infrared radiation in a silver thiogallate crystal pumped with ruby laser radiation. A description is given of experimental conversion of CO2 laser radiation to the visible range in an AgGaS2 crystal, confirming the results of calculations. The conversion efficiency is found to be 10% for Q-switched pump-laser radiation of 2.2×105 W/cm2 power density in a crystal 3.3 mm long.