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Volume 45 All articles Published: 27 October 2022 Article ID 0218
Third-order optical nonlinearity and power limiting characteristics of acid green 3 dye
Third-order optical nonlinearity and optical limiting (OL) characteristics of an organic dye acid green 3 (AG 3) dye in water has been studied using a 635 nm diode laser of 5 mW power. The UV–visible absorption studies were carried out to understand the linear optical properties of acid green 3 dye. The recorded Fourier transform infrared spectra of acid green 3 dye reveals that the ${\pi}$-electrons are delocalized through intermolecular charge transfer (ICT) within theN-ethyl–sodium sulphite bonds, which lead to measurable polarization across the push–pull molecules. The structural properties and crystalline size of the acid green 3 dye were examined by X-ray diffraction spectra. The third-order nonlinear optical (NLO) parameters such as nonlinear absorption coefficient (${\beta}$) and nonlinear refractive index ($n_2$) were determined by performing the open aperture Z-scan and closed aperture Z-scan experiments, respectively. The reverse saturable absorption and self-defocusing type optical nonlinearity were observed for acid green 3 dye. The experiments were also performed to understand the OL characteristics of acid green 3 dye and obtained a low limiting threshold of 1.23${\times}$10$^2$ W cm$^{–2}$. The results of present experimental study reveal that acid green 3 dye possess good NLO properties and this dye system may be suitable for applications in low power NLO and photonic devices.
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Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
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Bulletin of Materials Science | News
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Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020 -
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
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