Metallic Bull's Eye Resonators as a Platform for Directed Single-Photon Emission from TMDC Monolayers

Secure, scalable quantum networks rely on single-photon sources that are bright, easy to fabricate and offer an easy integration into photonic networks. Integrating single photon sources into optical cavities increases their brightness and can lead to a high directivity of the emitted photons. Even though semiconductor quantum dots are so far the most advanced quantum light sources, monolayers of transition metal dichalcogenides (TMDCs) show great potential as quantum light sources [1]. Formation of single photon emitters in TMDCs was demonstrated by various approaches enabling the deterministic integration of such emitters in cavities [2], [3].