Email this article Nonlinear Refraction in Colloidal Ag2S Quantum Dots
- Authors: Kondratenko T.S.1, Smirnov M.S.1, Ovchinnikov O.V.1, Zvyagin A.I.1, Chevychelova T.A.1, Taydakov I.V.2
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Affiliations:
- Voronezh State University
- Lebedev Physical Institute
- Issue: Vol 46, No 6 (2019)
- Pages: 210-214
- Section: Article
- URL: https://journals.rcsi.science/1068-3356/article/view/229022
- DOI: https://doi.org/10.3103/S106833561906006X
- ID: 229022
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Abstract
Features of nonlinear refraction formation in colloidal solutions containing Ag2S quantum dots passivated with thioglycolic acid (Ag2S/TGA QDs) with a concentration of 0.1% and an average size of 2.0 nm are considered. Nonthermal self-focusing caused by the “band filling” effect under exciton excitation was detected by the Z-scanning method for 10-ns pulses of a YAG:Nd laser at a wavelength of 532 nm for Ag2S/TGA QDs having an exciton absorption maximum at 590 nm.
About the authors
T. S. Kondratenko
Voronezh State University
Author for correspondence.
Email: tamara-shatskikh@rambler.ru
Russian Federation, 1 Universitetskaya Sq., Voronezh, 394018
M. S. Smirnov
Voronezh State University
Email: tamara-shatskikh@rambler.ru
Russian Federation, 1 Universitetskaya Sq., Voronezh, 394018
O. V. Ovchinnikov
Voronezh State University
Email: tamara-shatskikh@rambler.ru
Russian Federation, 1 Universitetskaya Sq., Voronezh, 394018
A. I. Zvyagin
Voronezh State University
Email: tamara-shatskikh@rambler.ru
Russian Federation, 1 Universitetskaya Sq., Voronezh, 394018
T. A. Chevychelova
Voronezh State University
Email: tamara-shatskikh@rambler.ru
Russian Federation, 1 Universitetskaya Sq., Voronezh, 394018
I. V. Taydakov
Lebedev Physical Institute
Email: tamara-shatskikh@rambler.ru
Russian Federation, 53 Leninskii Pr., Moscow, 119991
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