Nonlinear properties of CdSe/ZnS quantum dots colloidal solutions under one- and two-photon excitation by means of high-power ultrashort laser pulses

A. M. Smirnov; Y. V. Valchuk; M. V. Kozlova; V. N. Mantsevich; V. S. Dneprovskii

doi:10.1117/12.2306989

14 May 2018 Nonlinear properties of CdSe/ZnS quantum dots colloidal solutions under one- and two-photon excitation by means of high-power ultrashort laser pulses

A. M. Smirnov, Y. V. Valchuk, M. V. Kozlova, V. N. Mantsevich, V. S. Dneprovskii

Author Affiliations +

Proceedings Volume 10684, Nonlinear Optics and its Applications 2018; 1068420 (2018) https://doi.org/10.1117/12.2306989
Event: SPIE Photonics Europe, 2018, Strasbourg, France

Abstract

In the present paper we analyze peculiarities of CdSe/ZnS colloidal quantum dots (QDs) nonlinear optical properties due to the one- and two-photon excitation of basic electron-hole (exciton) transition by means of ultra-short laser pulses. We also revealed the main mechanisms of optical nonlinearities which result in the laser beam divergency. To find out the role of quantum dots, two different types of solvents were investigated - toluene or hexane based colloidal solutions.

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A. M. Smirnov, Y. V. Valchuk, M. V. Kozlova, V. N. Mantsevich, and V. S. Dneprovskii "Nonlinear properties of CdSe/ZnS quantum dots colloidal solutions under one- and two-photon excitation by means of high-power ultrashort laser pulses", Proc. SPIE 10684, Nonlinear Optics and its Applications 2018, 1068420 (14 May 2018); https://doi.org/10.1117/12.2306989

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