The Investigation of the Effects of Media Polarity and Concentration on the Third Order Nonlinear Optical Properties of Azo Dye Solutions

Khadem Sadigh, Mahsa; Zakerhamidi, Mohammad Sadegh

Document Type : Research

Authors

Abstract

In this paper, Z-scan technique was used for investigating the effects of media polarity and concentration on the third order nonlinear optical properties of azo dye solutions. In this case, a cw mode laser at the wavelength of 650 nm and output power of 70 mW was used as a single excitation source. The experimental results indicate that reverse saturable absorption characteristics of the sample depend highly on the media polarity and concentration of dye solutions. According to the findings, by increasing the concentration of dye solutions, the nonlinear absorption coefficient of azo dye is increased in three different groups of solvents. High nonlinear absorption coefficients were observed in solvents with high hydrogen bond acceptor ability. Therefore, by selecting a proper solvent media and setting the concentration of dye solutions, a simple method for controlling the nonlinearity of selected azo dye was provided. Moreover, the selected azo dye with high nonlinearity and reverse saturable absorption characteristics can be used in optical devices.

Keywords

20.1001.1.27831752.1396.2.1.2.7

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Quarterly Journal of Optoelectronic

The Investigation of the Effects of Media Polarity and Concentration on the Third Order Nonlinear Optical Properties of Azo Dye Solutions

References

References

Volume 2, Issue 1 - Serial Number 5
September 2017
Pages 21-26

The Investigation of the Effects of Media Polarity and Concentration on the Third Order Nonlinear Optical Properties of Azo Dye Solutions

References

References

Volume 2, Issue 1 - Serial Number 5September 2017Pages 21-26

Volume 2, Issue 1 - Serial Number 5
September 2017
Pages 21-26