Abstract
Solid state solution AgGaGe3(1-x)Si3xSe8 in the range of x = 005-030 were synthesized and absorbance, MR, Raman spectroscopy, second harmonic generation measurements has been performed to explore linear and non-linear optical features The measured SHG intensity demonstrate significant dependence of non-linear optical properties from silica content. Analysing of Urbach's energy and Raman spectra allowed to determine the degree of defect depending on the chemical composition and temperature. (C) 2018 Elsevier GmbH. All rights reserved.