A comparative study of second harmonic generation of pulsed CO2 laser radiation in some infrared crystals

A comparative study of second harmonic generation of CO2 laser radiation in different infrared transmitting crystals like HgGa2S4, AgGaxIn(1−x)Se2, sulphur and indium doped GaSe and ZnGeP2 is reported. It is also shown that sulphur doped GaSe crystal is more efficient than ZnGeP2 crystal in terms of effective figure of merit.