Solvent Media on Nonlinear Optical Properties of Triarylmethane Dye via Facile Z-Scan Method

N Srinivasan Arunsankar; A Prabakaran; P Saravanan; M Vimalan; S Jeyaram

doi:10.1007/s10895-023-03529-0

Solvent Media on Nonlinear Optical Properties of Triarylmethane Dye via Facile Z-Scan Method

J Fluoresc. 2023 Dec 5. doi: 10.1007/s10895-023-03529-0. Online ahead of print.

Authors

N Srinivasan Arunsankar¹, A Prabakaran², P Saravanan³, M Vimalan³, S Jeyaram⁴

Affiliations

¹ Department of Physics, Sri Sairam Engineering College, West Tambaram, Chennai, 600044, Tamilnadu, India.
² Department of Physics, Veltech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai, 600062, Tamilnadu, India.
³ Department of Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, 602105, Tamilnadu, India.
⁴ Department of Physics, Takshashila University, Ongur (PO), Tindivanam, Villupuram, 604305, Tamilnadu, India. jeyaram.msc@gmail.com.

PMID: 38051401
DOI: 10.1007/s10895-023-03529-0

Abstract

Solvent environment on third-order nonlinear optical (TNLO) features of triarylmethane dye namely, basic blue 7 in different solvents is reported herein using 650 nm diode laser with continuous wave mode. The basic blue 7 dye is dissolved in different solvent media including ethanol, methanol, dimethyl formamide (DMF) and dimethyl sulfoxide (DMSO). The influence of solvent characteristics such as solvent polarizability and dipole moment on solute molecule is discussed. TNLO characteristics such as nonlinear optical index of refraction, nonlinear optical coefficient of absorption, real and imaginary components of the TNLO susceptibility are measured to be the order of 10^‒7 cm²/W, 10^‒3 cm/W, 10^‒6 esu and 10^‒7 esu, respectively. The dye exhibits large TNLO susceptibility by dissolving in DMSO. The TNLO susceptibility of basic blue 7 dye is measured to be the order of 10^‒6 esu. The overall results revealed that the basic blue 7 dye is suitable material for optoelectronics applications.

Keywords: Basic blue 7 dye; Nonlinear optical properties; Solvent characteristics; TNLO; Z‒scan.