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Rathika Thaya Kumari C.,Arignar Annagovt Arts College | Nageshwari M.,Arignar Annagovt Arts College | Sudha S.,Arignar Annagovt Arts College | Lydia Caroline M.,Arignar Annagovt Arts College | Mani G.,Arignar Annagovt Arts College
Journal of Chemical and Pharmaceutical Sciences | Year: 2015

Effect of uranyl on the growth and properties of L-Alanine (LA) single crystals has been studied. Single crystals of pure and uranyl doped LA was obtained with well-defined morphology. The as grown metal doped and pure single crystals were characterized using single crystal XRD technique which confirmed that the incorporation of metallic dopants has not changed the basic structure of the parent crystal. The pure and doped LA crystals have good transmission range extending from the ultraviolet into the infrared region. Fourier transform infrared (FTIR) spectroscopy were carried out to investigate the molecular vibrations of these crystals and to confirm the incorporation of the dopants. The thermal properties have been studied by TGA/DTA curves. The EDAX measurement and surface morphology was studied for pure and metal doped LA crystals. The second harmonic generation (SHG) study shows the nonlinear optical efficiency of the crystals. The laser damage threshold was measured for pure and metal doped LA crystals and also tested by using a Q-switched Nd: YAG laser with 21.1 MW/cm2 for LA and 32.39 MW/cm2 for uranyl doped LA crystals showing enhanced LDT value for metal doped uranyl LA crystal compared to pure LA crystal due to the metallic substitutions thus proving their useful candidature for nonlinear optical applications.

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