Lithium thioindate (LiInS2) is a new nonlinear chalcogenide biaxial material transparent from 0.4 to 12 μm, that has been successfully grown in large sizes and good optical quality. We report on new physical properties that are relevant for laser and nonlinear optics applications. With respect to AgGaS(e)2 ternary chalcopyrite materials, LiInS2 displays a nearly-isotropic thermal expansion behavior, a 5-times larger thermal conductivity associated with high optical damage thresholds, and an extremely low intensity-dependent absorption allowing direct high-power downconversion from the near-IR to the deep mid-IR. Continuous-wave difference-frequency generation (5-11μm) of Ti:sapphire laser sources is reported for the first time.
@article{arxiv.physics/0307082,
title = {Optical, vibrational, thermal, electrical, damage and phase-matching properties of lithium thioindate},
author = {S. Fossier and S. Salaun and J. Mangin and O. Bidault and I. Thenot and J. -J. Zondy and W. Chen and F. Rotermund and V. Petrov and P. Petrov and J. Henningsen and A. Yelisseyev and L. Isaenko and S. Lobanov and O. Balachninaite and G. Slekys and V. Sirutkaitis},
journal= {arXiv preprint arXiv:physics/0307082},
year = {2015}
}
Comments
27 pages, 21 figures. Replaces the previous preprint (physics/0307082) with the final version as it will be published in J. Opt. Soc. Am. B 21(11) (Nov. 2004 issue)