Resonant Interactions between a Mollow Triplet Sideband and a Strongly Coupled Cavity

Abstract

We demonstrate resonant coupling of a Mollow triplet sideband to an optical cavity in the strong coupling regime. We show that, in this regime, the resonant sideband is strongly enhanced relative to the detuned sideband. Furthermore, the linewidth of the Mollow sidebands exhibits a highly nonlinear pump power dependence when tuned across the cavity resonance due to strong resonant interactions with the cavity mode. We compare our results to calculations using the effective phonon master equation and show that the nonlinear linewidth behavior is caused by strong coherent interaction with the cavity mode that exists only when the Mollow sideband is near cavity resonance.

Temperature-Dependent Mollow Triplet Spectra from a Single Quantum Dot: Rabi Frequency Renormalization and Sideband Linewidth Insensitivity

“…As the intensity of the pump laser increases, however, an additional power dependent dephasing contribution arises, even at low temperatures [14][15][16][17][18][19][20][21][22][23][24]. This is often termed excitation induced dephasing (EID), which commonly originates from deformation potential coupling of QD excitons to longitudinal acoustic (LA) phonons.…”

“…Indistinguishable photons can be produced by s-shell resonant optical excitation of a single QD [10][11][12], wherein an electron-hole pair is created directly without any relaxation from higher states, which would otherwise cause inhomogeneous broadening in the QD emission spectrum. The coherence time (T 2 ) of such photons is able to approach the Fourier transform limit, T 2 ¼ 2T 1 (with T 1 the QD radiative lifetime) at low temperatures (∼4 K) and weak driving strengths [13].As the intensity of the pump laser increases, however, an additional power dependent dephasing contribution arises, even at low temperatures [14][15][16][17][18][19][20][21][22][23][24]. This is often termed excitation induced dephasing (EID), which commonly originates from deformation potential coupling of QD excitons to longitudinal acoustic (LA) phonons.…”

Coherent control of a strongly driven silicon vacancy optical transition in diamond

“…A detailed study of the photon statistical signature can be made for the triplet emission 32 . In addition, the coupling of a Mollow triplet sideband to an optical cavity may lead to a strongly enhanced resonant sideband [33][34][35] , enabling a tunable dressed state laser 36 . Finally, under magnetic field the spin-resolved Mollow triplet may assist in single-shot spin readout 25 or spin-photon interfaces.…”

Slow light in semiconductor quantum dots: Effects of non-Markovianity and correlation of dephasing reservoirs

“…Such a model has been extensively used for describing pure dephasing. [25][26][27][28][29][30][31][32][33][34][35] In the interaction picture with respect to the phonon reservoir, the reservoir operators are described by…”

“…Reservoir correlations do not decay quickly enough and the density of reservoir states changes significantly on the scale of reservoir-system interaction constants and Rabi frequencies of driving fields. It is important to note that non-Markovian dephasing in quantum dots is responsible for phenomena such as, for instance, the damping of Rabi oscillations and excitation-induced dephasing, [24][25][26][27][28][29][30] phonon-induced spectral asymmetry, [30][31][32][33] and interference between phononic and photonic reservoirs.…”