Numerical simulation and modified Bridgman growth of high-quality and large-sized LiGaS2 mid-infrared optical crystals

In this study, large-sized LiGaS 2 crystals ( Ø 12 mm × 30 mm) were grown by a simulation-guided Bridgman method, showing high crystallinity (FWHM 36′′) and excellent optical properties with 0.4–8.6 μm transmittance up to 80% and 12.8 μm IR cutoff.