AgGaS2 crystals «In Stock»

Silver Thiogallate (AgGaS_², AGS) has been demonstrated as an efficient crystal for nonlinear parametric interactions in the infrared spectral range. Its transparency region ranges from 0,53 to 12 µm. AGS based optical parametric oscillators feature continuously tunable radiation over a wide range of wavelengths in the infrared spectral range. High transparency in the short wavelength range beginning at 550 nm is used in OPOs pumped by Nd:YAG laser.
Using 2050 nm pump laser, an optimally designed AgGaS_² OPO is tunable from about 2,5 to 12,0 µm. The output range can be extended by the sum or difference frequency mixing (SFM/DFM). This crystal features a high non-linear coefficient, high damage threshold, and a wide transmission range. It also exhibits a low optical absorption and scattering, low wavefront distortion. AgGaS_² has the highest figure of merit for non-linear interactions in the near and deep infrared.