Growth and Characterization of organic nonlinear optical (NLO) 1, 3-dinitrobenzene single crystals by vertical Bridgman method and its prospects as electro-optic modulators | Health & Environmental Research Online (HERO)

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HERO ID

8244088

Reference Type

Journal Article

Title

Growth and Characterization of organic nonlinear optical (NLO) 1, 3-dinitrobenzene single crystals by vertical Bridgman method and its prospects as electro-optic modulators

Author(s)

Vijayakumar, S; Srinivasan, P; Dinagaran, S

Year

2015

Volume

Issue

Page Numbers

38055-38060

Language

English

Abstract

The growth of single crystals of 1, 3-dinitrobenzene (1, 3-DNB), an organic nonlinear optical material is reported. Good optical quality single crystals were grown by vertical Bridgman technique (VBT) with modified ultra smooth vibration free translation setup. The grown crystals were characterized by single crystal X-ray diffraction (XRD), FT-IR and optical transmission studies. Thermal studies confirm that the title compound has a fairly high thermal stability when compared with other members of dinitrobenzene family. The second harmonic generation (SHG) property was tested by Kurtz-Perry powder technique and the results of these experiments are discussed. Hyperpolarizability and HOMO-LUMO analysis of 1, 3-DNB were performed with the help of Density Functional Theory (DFT) calculations using Gaussian 03 software. © Research India Publications.

Keywords

Bridgman technique; HOMO-LUMO; Hyperpolarizability; Nonlinear optical crystals; Thermal stability