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1 2018

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Synthesis and investigation of nonlinear optical properties of Para Red: Z-scan technique end quantum mechanical calculations

Mostaghni F., Abed Y.

Materials Science Poland

2018

Vol. 36, No. 3

445--451

In this study, we present a systematic study of linear and nonlinear optical properties of Para Red with the aim of Z-scan technique and quantum mechanical calculations. The Z-scan experiments were performed using a 532 nm Nd: YAG (SHG) CW laser beam. Para Red exhibited a strong nonlinear refractive index, nonlinear absorption coefficient and third-order nonlinear susceptibility 3.487 × 10-6 cm2/W, 2.341 × 10-1 cm/W and 2.157 × 10-4 esu, respectively. Also, quantum chemical analysis was used for the calculation of the dipole moment µ, dipole polarizability α, anisotropy of polarizability Δα and molecular hyperpolarizabilities (β, γ). The results revealed that Para Red has large first and second hyperpolarizabilities. However, from the obtained results, it was found that Para Red can be a promising material for applications in the development of non-linear optical materials.