Спектры поглощения пробного сигнала и резонансной флуоресценции для излучателей при их взаимодействии с локальным окружением в прозрачных средах

Оптика и спектроскопия. 2022. Т. 130. № 1. С. 151–159.

Смирнова Е. А., Лозинг Н. А., Гладуш М. Г., Наумов А. В.

The current paper demonstrates theoretical analysis of two types of spectral curves for several

configurations of system of two-level light emitters, considering the influence of local field and

close environment inside a transparent medium. Probe field absorption spectra and resonant

fluorescence spectra are calculated under excitation of a strong monochromatic cw laser. The

sensitivity of absorption and emission optical spectroscopy method is compared for revealing the

effects of the medium on individual emitters and their ensembles. Spectral curves were

calculated for model emitters considering local field influence of a transparent dielectric medium

and local electron-phonon interactions, which determined the response of the emitters to an

external laser field and effective relaxation mechanisms. The calculation formalism is based on a

semiclassical approach, while the relaxation processes associated with the phonon contribution

are introduced phenomenologically with references to other studies.

Keywords: quantum dot, квантовая точка, electron-phonon interaction, электрон-фононное взаимодействие, absorption spectrum, спектр поглощения, Resonance fluorescence, probe field method, local field, резонансная флуоресценция, метод пробного поля, локальное поле