Design of a hybrid Mie-Tamm photonic structure as a highly directional GHz single-photon source

TL;DR

This paper introduces a hybrid photonic structure combining Mie, Tamm, and surface plasmon modes to create a highly directional GHz single-photon source, optimized for efficient excitation and collection through the substrate side.

Contribution

It presents a novel hybrid Mie-Tamm photonic design tailored for GHz single-photon emission with high directionality and practical fabrication considerations.

Findings

Achieves over 3 GHz single-photon emission rate

Provides a design for substrate-side excitation and collection

Discusses fabrication tolerances and practical implementation

Abstract

We present a photonic structure where Mie, Tamm, and surface plasmon optical modes can be tailored to enhance the brightness of an embedded single-photon emitter. Contrary to most proposals, the structure is designed for excitation and collection through the substrate side. The front surface can be used instead to arrange metal contacts which serve both, as electrical gates and optical mirrors. The design is particularized for InGaAs QDs on GaAs resulting in an outcoupled single-photon rate exceeding 3 GHz in a narrow cone of NA = 0.17. The fabrication tolerances are also discussed.