Interactional Effects of Molecular Surrounding Environment on the Third Order Nonlinear Optical Properties

Khadem Sadigh, Mahsa

doi:10.30473/jphys.2020.51857.1087

Document Type : Research

Author

Mahsa Khadem Sadigh

Assistant Professor, Department of Laser and Optics Engineering, University of Bonab, Bonab, Iran

https://doi.org/10.30473/jphys.2020.51857.1087

Abstract

The aim of this experimental study is investigating the interactional effects of molecular surrounding environment on its third order nonlinear optical properties. In this case, the nonlinear behavior of an azo dye in different concentrations of three various groups of solvents with strong hydrogen bond donor and acceptor ability and weak tendency for formation of hydrogen bonds was investigated. Therefore, azo dye solutions with different polarity and concentrations were placed in open aperture Z-scan setup. According to the results, value of nonlinear absorption coefficients and type of involved third order nonlinear absorption phenomena depend on the concentration and intractional properties of molecular surrounding environment. In this case, the opposite behavior of azo dye solutions in two different concentrations are related to different molecular interactions.Under this condition, in low concentrations, the nonlinear absorption coefficients indicate high value in environments with strong hydrogen bond donor ability such as methanol. In high concentrations, environments with strong hydrogen bond acceptor ability such as DMF lead to increasing the nonlinear absorption coefficients.
Therefore, by changing the concentration and molecular interactions, controlling the nonlinear behavior of optical material is possible. Therfore, the investigated azo dye with controllable saturable and reverse saturable absorption properties can play an important role in designing optical devices.

Keywords

20.1001.1.27831752.1400.3.2.4.0

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Quarterly Journal of Optoelectronic

Interactional Effects of Molecular Surrounding Environment on the Third Order Nonlinear Optical Properties

References

References

Volume 3, Issue 2 - Serial Number 9
August 2021
Pages 35-40

Interactional Effects of Molecular Surrounding Environment on the Third Order Nonlinear Optical Properties

References

References

Volume 3, Issue 2 - Serial Number 9August 2021Pages 35-40

Volume 3, Issue 2 - Serial Number 9
August 2021
Pages 35-40