Author(s)

G. Pasupathi, P. Philominathan

PG Research and Department of Physics, A.V.V.M Sri Pushpam College (Autonomous), Poondi?C, Thanjavur, Tamil Nadu, India.

Single crystal of lithium potassium sulphate, a nonlinear optical material, was grown from aqua solution by slow evapo- ration method at room temperature. The cell parameters were estimated by single crystal X-ray diffraction analysis. The optical transmittance of the crystal was recorded using the UV-Vis-NIR spectrophotometer and the optical band gap was calculated using this method. The second harmonic generation efficiency was measured by Kurtz and Perry powder technique and the phase-matching property was confirmed. The hardness of the material was measured by Vicker’s hardness test.

Crystal Growth; Lithium-Potassium Sulphate; Inorganic NLO Material; X-Ray Diffraction; SHG Efficiency

G. Pasupathi and P. Philominathan, "Growth, Structural, optical and hardness studies of lithium potassium sulphate single crystals – an inorganic NLO material," Journal of Minerals and Materials Characterization and Engineering, Vol. 11 No. 9, 2012, pp. 904-907. doi: 10.4236/jmmce.2012.119086.