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Abstract:
Integrated photonic circuits offer a promising route for studying coherent cooperative effects of a controlled collection
of quantum emitters. However, spectral inhomogeneities, decoherence, and material incompatibilities in the solid
state make this a nontrivial task. Here, we demonstrate efficient coupling of a pair of Fourier-limited organic molecules
embedded in a polyethylene film to a TiO2 microdisc resonator on a glass chip. Moreover, we tune the resonance frequen-
cies of the emitters with respect to that of the microresonator by employing nanofabricated electrodes. For two molecules
separated by a distance of about 8 μm and an optical phase difference of about π/2, we report on a large collective
extinction of the incident light in the forward direction and the destructive interference of its scattering in the backward
direction. Our work sets the ground for coherent coupling of several quantum emitters via a common mode and realiza-
tion of polymer-based hybrid quantum photonic circuits.
