Resonance Fluorescence from Waveguide-Coupled, Strain-Localized, Two-Dimensional Quantum Emitters

Autor: Sebastien Barbat, Art Branny, Mauro Brotons-Gisbert, Marc Sartison, Raphaël Picard, Cristian Bonato, Thibaut Renaud, Val Zwiller, Micaela Laini, Brian D. Gerardot, Eva Schöll, Klaus D. Jöns, Carlos Errando-Herranz, Ulrika Wennberg, Samuel Gyger, Ali W. Elshaari
Jazyk: angličtina
Předmět:
Zdroj: ACS Photonics
ISSN: 2330-4022
DOI: 10.1021/acsphotonics.0c01653
Popis: Efficient on-chip integration of single-photon emitters imposes a major bottleneck for applications of photonic integrated circuits in quantum technologies. Resonantly excited solid-state emitters are emerging as near-optimal quantum light sources, if not for the lack of scalability of current devices. Current integration approaches rely on cost-inefficient individual emitter placement in photonic integrated circuits, rendering applications impossible. A promising scalable platform is based on two-dimensional (2D) semiconductors. However, resonant excitation and single-photon emission of waveguide-coupled 2D emitters have proven to be elusive. Here, we show a scalable approach using a silicon nitride photonic waveguide to simultaneously strain-localize single-photon emitters from a tungsten diselenide (WSe2) monolayer and to couple them into a waveguide mode. We demonstrate the guiding of single photons in the photonic circuit by measuring second-order autocorrelation of g(2)(0) = 0.150 ± 0.093 and perform on-chip resonant excitation, yielding a g(2)(0) = 0.377 ± 0.081. Our results are an important step to enable coherent control of quantum states and multiplexing of high-quality single photons in a scalable photonic quantum circuit.
Databáze: OpenAIRE