Several features of nonlinear optical susceptibilities of LiGaX2 (X = S, Se) ternary compounds

0343178 - ÚVGZ 2011 RIV CH eng J - Journal Article
Reshak, Ali H - Auluck, S. - Kityk, I. V.
Several features of nonlinear optical susceptibilities of LiGaX2 (X = S, Se) ternary compounds.
Journal of Alloys and Compounds. Roč. 473, 1-2 (2009), s. 20-24. ISSN 0925-8388. E-ISSN 1873-4669
Institutional research plan: CEZ:AV0Z60870520
Keywords : Electronic structure * Optical properties (linear and nonlinear) * DFT
Subject RIV: BO - Biophysics
Impact factor: 2.135, year: 2009

We report theoretical calculation of the linear and nonlinear optical susceptibilities based on one of the most accurate methods for the computation of the linear and nonlinear optical susceptibilities of solids within density functional theory (DFT). The linear optical properties show negative uniaxial anisotropy indicating the strong anisotropy. Our calculations show that these crystals possess negative birefringence. The negative uniaxial anisotropy and birefringence will be in the favor of our calculated X-ijk((2))(omega). These crystals possess very high first-order in the infrared spectral region.
Permanent Link: http://hdl.handle.net/11104/0185712