Self-action effect in stationary excited semiconductor quantum dots

Авторы: Kozlova M.V., Kanev A.R., Dneprovskii V.S., Smirnov A.M.
Сборник: Proceedings of 22d Int. Symp.”Nanostructures: Physics and Technology
Тезисы
Год издания: 2014
Место издания: St. Petersburg
Первая страница: 182
Последняя страница: 183
Аннотация: Self-action effect has been discovered in the case of stationary resonant excitation of excitons in CdSe/ZnS colloidal quantum dots by the beam of the second harmonic of powerful 12-nanosecond laser pulses. The bleaching of exciton absorption and the creation of transparency channel (this effect provokes self-diffraction of the second harmonic beam) was explained by the dominating coexisting and competing processes of state filling in stationary excited quantum dots and Stark-shift of exciton spectral band. The peculiarities of the influence of these processes at the change of exciton absorption in quantum dots in the case of different detuning from exciton resonance (quantum dots with different size have been used) was analyzed.
Добавил в систему: Смирнов Александр Михайлович

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