Structural, Electrical and Optical Characterization Studies on Glycine Picrate Single Crystal : A Third Order Nonlinear Optical Material

Abstract

Single crystal of an organic nonlinear optical (NLO) material, Glycine picrate (GP), was grown by slow cooling method. The structural perfection of the grown crystal was analyzed by highresolution X-ray diffraction (rocking curve) measurements. UV-Visible-NIR spectral analysis was used to determine the optical constants and band gap of GP. The nature of variation of dielectric constant with frequency at different temperatures was investigated. Third-order optical nonlinearities of GP crystal were investigated. Etch patterns of the grown crystal quality were studied.