Synthesis, growth and characterization of organic nonlinear optical L-asparagine L-tartrate single crystals

L-asparagine L-tartrate (LAT), a novel organic compound was synthesized and bulk single crystal was grown from aqueous solution by slow evaporation technique. Powder X-ray diffiaction studies confirm the monoclinic structure of the grown LAT crystal. The presence of functional groups in the grown crystal was identified by FTIR studies. Linear optical property of the grown crystal was studied by UV-Vis spectral analysis. Microhardness studies reveal that the crystal possesses relatively higher hardness compared to other organic nonlinear optical crystals. Dielectric response of the L-asparagine L-tartrate crystal was analyzed for various frequencies at ambient temperature. Kurtz-Perry powder second harmonic generation test confirms the nonlinear optical properties of the as-grown LAT crystal.