Crystal Growth and Characterization of Sodium p-Nitrophenolate Dihydrate (NPNa) Single Crystals for NLO Applications

摘要

A good quality and transparent semi-organic nonlinear optical sodium p-nitrophenolate dihydrate (NPNa) crystal has been grown by slow evaporation solution technique (SEST) in a period of 180 days. The single crystal XRD confirms the NPNa crystal belongs to orthorhombic system with the non-centrosymmetry space group Ima2. The quality of the grown crystal was examined by high resolution X-ray diffraction (HXRD) analysis and the full width at half maximum (FWHM) of NPNa crystal was found to be 19 arc sec. The thermal property of the NPNa crystal was analyzed by TG-DTA analysis. The second harmonic generation (SHG) efficiency of the grown crystal was studied by Kurtz-Perry powder technique and the calculated SHG conversion efficiency was found to be 2.4 times that of standard KDP material.