Size Dependence of the Resonant Third-Order Nonlinear Refraction of Colloidal PbS Quantum Dots
Ivan D. SkurlovCenter of Informational Optical Technologies, ITMO University, Kronverksky pr. 49, Saint-Petersburg 197101, RussiaEvgeniia A. PonomarevaLaboratory of Quantum Processes and Measurements, ITMO University, Kronverksky pr. 49, Saint-Petersburg 197101, RussiaAzat O. IsmagilovLaboratory of Quantum Processes and Measurements, ITMO University, Kronverksky pr. 49, Saint-Petersburg 197101, RussiaS. É. PutilinLaboratory of Quantum Processes and Measurements, ITMO University, Kronverksky pr. 49, Saint-Petersburg 197101, RussiaIlia A. VovkCenter of Informational Optical Technologies, ITMO University, Kronverksky pr. 49, Saint-Petersburg 197101, RussiaAnastasiia V. SokolovaCenter of Informational Optical Technologies, ITMO University, Kronverksky pr. 49, Saint-Petersburg 197101, RussiaAnton TcypkinLaboratory of Quantum Processes and Measurements, ITMO University, Kronverksky pr. 49, Saint-Petersburg 197101, RussiaAleksandr P. LitvinCenter of Informational Optical Technologies, ITMO University, Kronverksky pr. 49, Saint-Petersburg 197101, Russia
2020en
ABI
Аннотация
Due to their high resonant third-order nonlinear response, lead sulfide quantum dots (QDs) are potential materials for applications in the field of nonlinear optics. In this paper, we implement the Z-scan method to study the resonant nonlinear response of lead sulfide QDs in colloidal solutions. We managed to measure the purely intrinsic resonant nonlinear response, free of thermal contribution. We report that the lead sulfide QD third-order nonlinear response per QD shows an unconventional increase. A figure of merit for QD nonlinearity grows as a power function with a factor of 2.9.
Перевод пока недоступен
Идентификаторы
Цитирования и источники
Цитирований: 2Использованных источников: 0