Cavity-enhanced single photon emission from a single impurity-bound exciton

Bibliographic Details
Title: Cavity-enhanced single photon emission from a single impurity-bound exciton
Authors: Jiang, Yuxi, Pettit, Robert M., Driesch, Nils von den, Pawlis, Alexander, Waks, Edo
Publication Year: 2023
Collection: Physics (Other)
Quantum Physics
Subject Terms: Quantum Physics, Physics - Optics
More Details: Impurity-bound excitons in ZnSe quantum wells are bright single photon emitters--a crucial element in photonics-based quantum technology. But to achieve the efficiencies required for practical applications, these emitters must be integrated into optical cavities that enhance their radiative properties and far-field emission pattern. In this work, we demonstrate cavity-enhanced emission from a single impurity-bound exciton in a ZnSe quantum well. We utilize a bullseye cavity structure optimized to feature a small mode volume and a nearly Gaussian far-field transverse mode that can efficiently couple to an optical fiber. The fabricated device displays emission that is more than an order of magnitude brighter than bulk impurity-bound exciton emitters in the ZnSe quantum well, as-well-as clear anti-bunching, which verifies the single photon emission from the source. Time-resolved photoluminescence spectroscopy reveals a Purcell-enhanced radiative decay process with a Purcell factor of 1.43. This work paves the way towards high efficiency spin-photon interfaces using an impurity-doped II-VI semiconductor coupled to nanophotonics.
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2309.01748
Accession Number: edsarx.2309.01748
Database: arXiv
More Details
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