Abstract
Oxalic acid doped Guanidine carbonate, an organic nonlinear optical single crystal is developed successfully by slow evaporation solution growth method using deionized water as a solvent. The crystal structure and lattice parameters of grown crystals are determined by single crystal X – ray diffraction of the grown crystal. The presence of expected functional groups of the grown crystal is identified by Fourier Transform Infrared spectroscopy. The optical transmittance spectrum of the crystals has been recorded by UV –Vis-NIR spectral analysis. The calculated large bandgap of the grown crystals attests them for optoelectronic applications. The Thermo Gravimetric and Differential Thermal analyses have been carried out to understand the thermal responses of the crystals. Second harmonic generation efficiency of the grown crystals have been calculated by Kurtz powder method. Nd – YAG laser (1064 nm) was used to find out the laser damage threshold of the grown crystal. The inspiring results confirms that the grown crystal serve as a potential candidate for photonic devices.
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