Applied Sciences Session:

Title:            Enhanced optical, NLO, Photo conductivity and Di-electric properties of Tris-Glycine Zinc Chloride single crystals doped with chelating agent for LiDAR with applications
Authors:       K. Sugandhi, M. Selvambikai, E. Shobana, P. S. Premkumar
Abstract:      Non-linear optical crystals which are used as frequency converters to access various spectral ranges like visible or UV are key components of (Light Detection and ranging) LiDAR systems. For this purpose promising non-linear optical crystals like tris-glycine zinc chloride (TGZC) a nonlinear optical material, with the additive Ethylenediaminetetraacetic acid (EDTA) is grown successfully by slow cooling technique. In order to improve the device characteristics of TGZC crystals, organic dopant EDTA were incorporated into the parent crystals. Observation of the crystal growth, behaviour and measurement of growth kinetics revealed a strong dependence of growth rate on the additive. The slight change in unit-cell parameters of the doped compound from the pure TGZC were confirmed by single crystal X-ray diffraction analysis. The photocurrent of both pure and doped crystals is more than that of the dark current. The micro hardness observations showed that hardness is high for doped crystal. The dielectric loss is low at high frequency and this behavior is of vital importance for NLO applications. In this paper, an attempt has been made on the growth and characterization of nonlinear optical crystal and theoretical aspects of single crystals as frequency convertors in and its major engineering applications like autonomous vehicle, spaceflight, Atmospheric Remote Sensing and Meteorology and robotics are discussed.

Keywords:   Non-linear optical (NLO), Light Detection and Ranging (LiDAR), Tris-Glycine Zinc Chloride (TGZC), EthyleneDiamineTetraacetic-Acid (EDTA), autonomous vehicle, spaceflight, Atmospheric Remote Sensing and Meteorology and robotics.
Pages:         643-647

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