NONLINEAR OPTICAL CRYSTAL MATERIAL, METHOD FOR PREPARATION THEREOF, AND APPLICATION THEREOF

摘要

The present application discloses a nonlinear optical crystal material, preparation method and application of the nonlinear optical crystal material. The nonlinear optical crystal material has an excellent infrared nonlinear optical performance, whose frequency-doubling intensity can reach 9.3 times of AgGaS₂ with the same particle size, and it meets type-I phase matching; and its laser damage threshold can reach 7.5 times of AgGaS₂ with the same particle size. The nonlinear optical crystal material has important application value in the frequency-converters which can be used for frequency doubling, sum frequency, difference frequency, optical parametric oscillation of laser in mid and far infrared waveband, and the like.