Optical, thermal, electrical, damage, and phase-matching properties of lithium selenoindate
LiInSe2, a biaxial nonlinear crystal transparent from 0.54 to 10 µm, is successfully grown in large sizes with good optical quality. We summarize all characteristics and physical properties of LiInSe2 essential for nonlinear frequency conversion.
Optical, thermal, electrical, damage, and phase-matching properties of lithium selenoindate
Lithium selenoindate (LiInSe2) is a new nonlinear chalcogenide biaxial crystal, related to LiInS2 and transparent from 0.54 to 10 μm at the 50% level (10 mm thickness), which has been successfully grown in large sizes and with good optical quality. We report on what we believe to be new physical properties that are relevant for laser and nonlinear optical applications and summarize all relevant characteristics, both from the literature and as measured in the present work. With respect to AgGaS(e)2 ternary chalcopyrite materials, LiInSe2 displays a nearly isotropic thermal expansion behavior with three- to five-times-larger thermal conductivities associated with high optical damage threshold…