Paper in Nature Photonics on long sought-after regime in quantum optics

A paper published in Nature Photonics, report the direct observation and systematic investigations of dynamic resonance fluorescence spectra beyond the Mollow-triplet in a solid-state cavity quantum electrodynamic system. This work facilitates the generation of a variety of exotic quantum states of light with dynamic driving of two-level systems.

Cavity-enhanced side peaks in the spectra of dynamic RF

a, Cavity-red-detuned conditions at 4 K: Δc/(2π) = − 26GHz and Δx = 0, with a pulse width of 54 ps. b, Contour plot of the measured RF spectra (under the conditions in a) as a function of drive pulse amplitude. c, Simulated dynamic RF spectra for the experiments in b. d, Comparisons of the experimental and calculated spectra (under the conditions in a) at 4π and 6π pulse areas. e, Cavity-blue-detuned conditions at 19 K: Δc/(2π) = 22 GHz and Δx = 0, with a pulse width of 54 ps. f, Contour plot of the measured RF spectra (under the conditions in e) as a function of drive pulse amplitude. g, Simulated pulsed RF spectra for the experiments in f. h, Comparisons of the experimental and calculated spectra (under the conditions in e) at 4π and 6π pulse areas.

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