Growth and characterization of a new NLO material: l-Glutamic acid hydro bromide [l-GluHBr] |
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Authors: | R Sathyalakshmi P Ramasamy |
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Affiliation: | a Crystal Growth Centre, Anna University, Chennai 600025, India b Materials Characterization Division, National Physical Laboratory, New Delhi 110012, India c Centre for Crystal Growth, SSN College of Engineering, SSN Nagar 603110, India |
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Abstract: | l-(+)-Glutamic acid hydro bromide, an isomorphic salt of l-glutamic acid hydrochloride, was synthesized and the synthesis was confirmed using Fourier transform infrared analysis. Solubility of the material in water was determined. l-Glutamic acid hydro bromide crystals were grown by low temperature solution growth using the solvent evaporation technique. Single crystal X-ray diffraction studies were carried out and the cell parameters, atomic co-ordinates, bond lengths and bond angles were reported. High-resolution X-ray diffraction studies were carried out and good crystallinity for the grown crystal was observed from the diffraction curve. The grown crystals were subjected to dielectric studies. Ultraviolet-visible-near infrared spectral analysis shows good optical transmission in the visible and infrared region of the grown crystals. The second harmonic generation efficiency of l-glutamic acid hydro bromide crystal was determined using the Kurtz powder test and it was found that it had efficiency comparable with that of the potassium di-hydrogen phosphate crystal. |
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Keywords: | A Optical materials B Crystal growth C X-ray diffraction D Optical properties |
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