Dillip, G. R. and Raghavaiah, P. and Mallikarjuna, K. and Reddy, C. Madhukar and Bhagavannarayana, G. and Kumar, V. Ramesh and Raju , B. Deva Prasad (2011) Crystal growth and characterization of gamma-glycine grown from potassium fluoride for photonic applications. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 79 (5). pp. 1123-1127. ISSN 1386-1425

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Single crystals of γ-glycine, an organic nonlinear optical material have been synthesized in the presence of potassium fluoride (KF) by slow evaporation technique at ambient temperature. The size of the grown crystal is up to the dimension of 12 mm × 10 mm × 8 mm. The γ-phase was confirmed by single crystal X-ray diffraction, powder XRD and the FTIR analysis. Optical absorption spectrum reveals that the grown crystal has good optical transparency in the entire visible region with an energy band gap of 5.09 eV, which is an essential requirement for a nonlinear optical crystal. Thermal stability of the grown γ-glycine crystal was determined using the thermo gravimetric and differential thermal analyses. The NLO activity of γ-glycine was confirmed by the Kurtz powder technique using Nd:YAG laser and the grown crystal exhibits high relative conversion efficiency when compared to potassium dihydrogen phosphate (KDP).

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Elsevier B.V.
Uncontrolled Keywords: Nonlinear optical materials; Crystal growth from solution; X-ray diffraction; Thermal properties
Subjects: Spectroscopy
Depositing User: Mr. Abhishek Yadav
Date Deposited: 20 Nov 2012 13:05
Last Modified: 20 Nov 2012 13:05
URI: http://npl.csircentral.net/id/eprint/827

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