NONLINEAR OPTICAL PROPERTIES OF Ag3SbS3

Abstract
The nonlinear optical properties of Ag3SbS3 (pyrargyrite) as determined by second harmonic generation (SHG) with the 10.6μ CO2 laser are presented. Phase‐matched nonlinear mixing is possible and the material is suitable as a phase‐matched standard in the infrared for optical nonlinearities.