Synthesis, Growth and Characterization of Nonlinear Optical Nd- Doped L-Prolinium Picrate Single Crystals
T. Gurumurthi and P. Murugakoothan
A nonlinear optical material Neodymium doped L-Prolinium Picrate (Nd: LPP) was synthesized and grown as single crystals by slow evaporation method. The grown crystals have been subjected to structural, elemental, thermal, optical and dielectric studies. The structural analysis reveals that Nd : LPP belongs to the monoclinic crystallographic system with space group P21. Optical transparency of the grown crystals was investigated by UV-vis-NIR spectrum. The thermal analyses reveal that Nd : LPP is thermally stable up to 156 °C. The dielectric constant and dielectric loss of the crystal have been studied as a function of frequency and the results are discussed. The nonlinear optical property of the grown crystal was confirmed by the Kurtz-powder second harmonic generation test and the results are compared with pure LPP. Mechanical strength of the crystal was also carried out by Vicker’s micro hardness test.
Keywords: Growth from solution, X-ray diffraction, Semi organic compound, Nonlinear optical crystal, Micro hardness.