METHOD FOR PREPARING MONOCLINIC GA2S3 CRYSTAL AND USE IN OPTICS THEREOF

摘要

Provided is a method for preparing monoclinic Ga2S3, comprising: mixing Ga2O3, B, and S according to a mole ratio of 1:2:3, grinding the mixture, pressing the ground mixture to form a sheet, then sealing the sheet into a vacuum quartz tube, and heating the tube in accordance with a specific temperature curve to obtain the product of monoclinic Ga2S3 crystal. Also provided is a use of monoclinic Ga2S3 crystal as infrared wave band second-order nonlinear crystal material.