Non-linear characteristics of Lithium Thioindate (LiInS2 or LIS) crystal are close to AgGaS2 and AgGaSe2, but their crystal structures are different. Lithium Thioindate (LiInS2 or LIS) crystal is pyroelectric, its electrooptical parameters are the base for using it as an effective electrooptical material.

APPLICATIONS of nonlinear single crystal Lithium Tioindate (LiInS2 or LIS):

- For second harmonic generation of CO2-lasers
- For up-conversion of CO2-laser radiation image into near-IR or visible region
- For frequencies mixing in the middle IR region
- For tunable solid state lasers using OPO, pumped by Nd:YAG and others lasers in range 1.2 - 10 µm