Kumar, R. Ashok and Vizhi, R. Ezhil and Sivakumar, N and Vijayan, N. and Babu, D. Rajan (2012) Crystal growth, optical and thermal studies of nonlinear optical gamma-glycine single crystal grown from lithium nitrate. Optik , 123. pp. 409-413. ISSN 0030-4026

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Abstract

Single crystals of the nonlinear material gamma-glycine have been grown in the presence of lithium nitrate by slow-evaporation method. Structural characterization of the grown crystals was carried out by powder and single crystal X-ray diffraction (XRD) methods and it is observed that the samples crystallize in hexagonal system with non-centrosymmetric space groups. The modes of vibrations of different molecular groups present in glycine have been identified by spectral analyses. UV-visible transmittance study was performed to analyze optical transparency of gamma-glycine crystals and found that the crystal was transparent in the entire visible-NIR region. Second harmonic generation (SHG) conversion efficiency has been estimated as 62 mV and the output power by the crystal was 1.72 times that of potassium dihydrogen phosphate (KDP) crystal. The thermal stability and decomposition of the sample have been studied by thermal analysis and if is observed that the gamma-glycine crystal have good thermal stability.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Optics
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	07 Feb 2020 07:53
Last Modified:	07 Feb 2020 07:53
URI:	http://npl.csircentral.net/id/eprint/3659

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