Nonlinear reverse saturation absorption, self-defocusing behavior and structure-property relationship of a novel 2,3,4-trimethoxy-4 '-nitrochalcone single crystal

摘要

The present work describes the crystal structure, third-order nonlinear optical (NLO) properties and Hirshfeld Surface (HFs) analysis of 1-(4-nitrophenyl)-3-(2, 3, 4,-trimethoxyphenyl) prop-en-1-one (2, 3,4TMNC). The synthesized material was characterised by FT-IR, FT-Raman, UV-Visible, NMR [H-1, C-13 {H-1}] and single crystal X-ray diffraction techniques. TGA-DTA analysis revealed that crystal has higher thermal stability. HFs analysis is performed to visualize intra and intermolecular interactions (C-H center dot center dot center dot O). The third-order NLO properties were studied using standard open and closed aperture Z-Scan technique with a continuous wave (CW) DPSS laser (lambda= 532 nm). The calculated values of nonlinear refraction coefficient (n(2)), third-order nonlinear susceptibility (chi((3))) and nonlinear absorption coefficient ((3) were found to be of the order of -10(-9) cm(2)/W, 10(-7) esu and 10(-5) cmW(-1) respectively. Normalized transmittance is decreased with increased input intensity of laser i.e. 2, 3, 4 TMNC showed good optical limiting property. The optical limiting threshold was found to be 3.36 kJ/cm(2). Thus, the title chalcone derivative is a potential material for optical limiting applications. (C) 2019 Elsevier B.V. All rights reserved.