Kumar, M. Krishna and Sudhahar, S. and Bhagavannarayana, G. and Kumar, R. Mohan (2014) Crystal growth, structural and optical properties of an organic ion-complex crystal: 4-N,N-dimethylamino-4 '-N '-methylstilbazolium iodide. Optik, 125 (19). pp. 5641-5646. ISSN 0030-4026

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4-N,N-dimethylamino-4'-N'-methylstilbazolium iodide (DMSI) compound was synthesized by Knoevenagel reaction method and the crystals were grown by solution growth method. From the single crystal X-ray diffraction study, it is confirmed that DMSI crystal belongs to monoclinic system. The bond-length alternation (B LA) of the DMSI molecule was found to be 0.11 angstrom, which is responsible for quadratic NLO response. The electronic transition properties and optical constants such as energy gap (E-g), linear refractive index (n(1)) were determined using UV-visible and photoluminescence spectral studies. The second order nonlinear optical property of the crystal was examined using Kurtz-Perry powder test. Laser induced damage threshold on (001) plane of the optically polished crystal was found to be 1.24 GW/cm(2).

Item Type: Article
Additional Information: Copyright for this article belongs to M/S Elsevier.
Uncontrolled Keywords: Organic materials Crystal growth Optical properties Laser induced damage threshold Second harmonic generationa
Subjects: Optics
Depositing User: Dr. Rajpal Walke
Date Deposited: 17 Sep 2015 11:19
Last Modified: 17 Sep 2015 11:19
URI: http://npl.csircentral.net/id/eprint/1216

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