Cavity-enhanced zero-phonon emission from an ensemble of G centers in a silicon-on-insulator microring - Archive ouverte HAL Access content directly
Journal Articles Applied Physics Letters Year : 2023

Cavity-enhanced zero-phonon emission from an ensemble of G centers in a silicon-on-insulator microring

A. Durand
Y. Baron
V. Jacques
I. Robert-Philip
G. Cassabois
T. Herzig
J. Meijer
S. Pezzagna
A. Dréau
J.-M. Gérard

Abstract

We report the incorporation of an ensemble of G centers in silicon-on-insulator (SOI) microrings using ion implantation and conventional nanofabrication. The coupling between the emitters and the resonant modes of the microrings is studied using continuous-wave and time-resolved microphotoluminescence (PL) experiments. We observe the resonant modes of the microrings on PL spectra, on the wide spectral range that is covered by G center emission. By finely tuning the size of the microrings, we match their zero-phonon line at 1278 nm with a resonant mode of quality factor around 3000 and volume 7.2 (λ/n) 3 . The zero-phonon line intensity is enhanced by a factor of 5, both in continuous-wave and time-resolved measurements. This is attributed to the Purcell enhancement of zero-phonon spontaneous emission into the resonant mode and quantitatively understood considering the distribution of the G center dipoles. Despite the enhancement of the zero-phonon emission, we do not observe any sizeable decrease in the average lifetime of the G centers, which points at a low radiative yield (<10%). We reveal the detrimental impact of parasitic defects in heavily implanted silicon and discuss the perspectives for quantum electrodynamics experiments with individual color centers in lightly implanted SOI rings. Our results provide key information for the development of deterministic single-photon sources for integrated quantum photonics.

Dates and versions

hal-03979814 , version 1 (09-02-2023)

Identifiers

Cite

B. Lefaucher, J.-B. Jager, V. Calvo, A. Durand, Y. Baron, et al.. Cavity-enhanced zero-phonon emission from an ensemble of G centers in a silicon-on-insulator microring. Applied Physics Letters, 2023, 122 (6), pp.061109. ⟨10.1063/5.0130196⟩. ⟨hal-03979814⟩
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