INFLUENCE OF THE SIZE OF CRYSTALLINE POWDER GRAINS ON THE INTENSITY OF GENERATION OF SECOND HARMONICS

Abstract

In this paper, we analyzed the influence of the band gap and the average grain size on the intensity of generation of the second harmonic of AgGaGeS₄ and AgGaGe₃Se₈ crystals. The result suggests that multicomponent chalcogenides, namely AgGaGeS₄ and AgGaGe₃Se₈, are promising nonlinear-optical materials, since the laser damage threshold is large and the nonlinear-optical response is comparable to the commercially used AgGaS₂ and AgGaSe₂.