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Conference on Lasers and Electro-Optics

Very High-Q photonic microdisk resonator in an air-clad, thin-film SiN at near-visible wavelengths

Ali Eshaghian Dorche, Chandra Raman, Ali Adibi

Published Jan 1, 2021• 0 citations
Publisher

Abstract

Very high-Q photonic microdisk resonators in an air-clad thin-film SiN platform at near-visible wavelengths is demonstrated. The high Qs enabled by fabrication optimization result in the increased coherence time of the intracavity photon and provides better coherent interaction with atoms.
DOI
10.1364/cleo_si.2021.sth4b.6

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An outstanding challenge for color center-based quantum information processing technologies is the integration of optically-coherent emitters into scalable thin-film photonics. Here, we report on the integration of near-transform-limited silicon vacancy (VSi_{\text{Si}}Si​) defects into microdisk resonators fabricated in a CMOS-compatible 4H-Silicon Carbide-on-Insulator platform. We demonstrate a single-emitter cooperativity of up to 0.8 as well as optical superradiance from a pair of color centers coupled to the same cavity mode. We investigate the effect of multimode interference on the photon scattering dynamics from this multi-emitter cavity quantum electrodynamics system. These results are crucial for the development of quantum networks in silicon carbide and bridge the classical-quantum photonics gap by uniting optically-coherent spin defects with wafer-scalable, state-of-the-art photonics.