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Growth and characterization of glycinium oxalate crystals for nonlinear optical applications

K. J. ARUN1,* , S. JAYALEKSHMI1

Affiliation

  1. Division for research in advanced materials, Department of Physics, Cochin University of Science and Technology, Kochi682022, Kerala, Indi

Abstract

Single crystals of Glycinium oxalate (GLO) are grown by top seeded solution growth method. Characterization of the grown crystal is done by CHN test and powder X-ray diffraction. UV-Vis-NIR, FTIR spectroscopic analysis, thermal studies by TGA/ DTA and DSC, photoconductivity and photoluminescence studies, micro topography and chemical etching studies have also been carried out. crystal has a wide transperancy window from 324nm to 2500 nm making it suitable for applications in the whole region for higher harmonic generation and other optoelectronic applications. The good thermal stability of the material ensures its suitability for possible applications in lasers, where the crystals are required to withstand high temperatures. Z scan study under open aperture configuration illustrates the nonlinear optical behaviour of the grown crystal. The comparatively high value of two photon absorptive index demonstrates that the GLO crystal has potential for optical limiting applications.

Keywords

Crystal growth, Nonlinear optics, Thermal studies, Photoconductivity.

Citation

K. J. ARUN, S. JAYALEKSHMI, Growth and characterization of glycinium oxalate crystals for nonlinear optical applications, Optoelectronics and Advanced Materials - Rapid Communications, 2, 11, November 2008, pp.701-706 (2008).

Submitted at: Sept. 29, 2008

Accepted at: Oct. 30, 2008