Growth, Optical and Mechanical Properties of nonlinear optical alpha-Lithium Iodate Single Crystal
By R. Ashok Kumar, R. Ezhil Vizhi, N. Vijayan and D. Rajan Babu
The growth and characterization of a nonlinear inorganic crystal, alpha-lithium iodate is reported. The growth of single crystals of alpha-lithium iodate was accomplished by slow evaporation technique. The formation of alpha-lithium iodate compound has been confirmed by single crystal X-ray diffraction studies. The UV-Vis-NIR absorption spectrum has been recorded in the range 200-1200 nm. The Kurtz Perry SHG test confirms the NLO property of the grown crystal and the relative efficiency is 78 times greater than KDP. The compressive strength of the grown crystals was found using Tinius Olsen compression testing machine. Vickers microhardness study was carried out on the well developed face of the grown crystal.
Keywords: X-ray diffraction, Single crystal, Inorganic compounds, Nonlinear optic materials.