Experimental study of the influence of solvents on the optical nonlinearity of methyl red

Shengwen Qi; Hongguang Lu; Xueping Cheng; Edward R. Van Keuren

doi:10.1117/1.OE.56.8.087105

30 August 2017 Experimental study of the influence of solvents on the optical nonlinearity of methyl red

Shengwen Qi, Hongguang Lu, Xueping Cheng, Edward R. Van Keuren

Author Affiliations +

Optical Engineering, Vol. 56, Issue 8, 087105 (August 2017). https://doi.org/10.1117/1.OE.56.8.087105

Abstract

The absorption spectra of methyl red (MR) dissolved in methanol, ethanol, dimethyl sulfoxide, and hexane were measured. It was found that the peaks of the absorption spectra of MR solutions shifted toward shorter wavelengths with increasing solvent polarity. Using the Z-scan method, the nonlinear optical properties of the four kinds of MR solutions were determined at wavelength 441.6 nm. The effective nonlinear indexes of refraction (n2) of MR solutions increased with the increasing thermo-optical coefficients of the solvents. In addition, the optical limiting effects of the MR solutions were investigated at 441.6 and 535 nm, and the results indicate that they possessed strong optical limiting effects.

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Shengwen Qi, Hongguang Lu, Xueping Cheng, and Edward R. Van Keuren "Experimental study of the influence of solvents on the optical nonlinearity of methyl red," Optical Engineering 56(8), 087105 (30 August 2017). https://doi.org/10.1117/1.OE.56.8.087105

Received: 9 June 2017; Accepted: 14 August 2017; Published: 30 August 2017

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