Thermal effects on the resonance fluorescence of doubly dressed artificial atoms

Abstract

In this work, robustness of controlled density of optical states in doubly driven artificial atoms is studied under phonon dissipation. By using both perturbative and polaron approaches, we investigate the influence of carrier-phonon interactions on the emission properties of a two-level solid-state emitter, simultaneously coupled to two intense distinguishable lasers. Phonon decoherence effects on the main features of the emission spectra are found to be modest up to neon boiling temperatures (∼30 K), as compared with photon generation at the Fourier transform limit obtained in the absence of lattice vibrations (zero temperature). These results show that optical switching and photonic modulation by means of double dressing do not require ultralow temperatures for implementation, thus boosting their potential technological applications.

Broadband strong photon correlations of frequency-resolved single-atom resonance fluorescence generated by two equal-frequencylaser fields with different amplitudes

“…Meanwhile, the photon statistics of two-level atoms driven by two laser fields have not been considered [14], although relevant experimental research has been carried out [15][16][17][18][19][20][21][22]. With regard to quantum dotcavity couplings [23], the resonance fluorescence from a twofield dressed InGaAs quantum dot was investigated using both experiments and theory [24], and other properties of a single quantum dot driven by a bichromatic field were also studied [25,26]. To date, due to the considerable attention paid to the case of two laser fields, in this paper we consider the photon statistics of resonance fluorescence generated by two laser fields of equal frequencies but unequal amplitudes.…”