Room temperature single photon emission from oxidized tungsten disulphide multilayers

TL;DR

This study demonstrates room temperature, stable, polarized single photon emitters in oxidized tungsten disulphide multilayers, advancing 2D material quantum photonics.

Contribution

It introduces a novel method of fabricating quantum emitters in tungsten disulphide via thermal oxidation, revealing their optical stability and polarization properties.

Findings

Stable, polarized emission at room temperature.

Emitters can be modeled with a three-level system.

Moderate photon bunching observed.

Abstract

Two dimensional systems offer a unique platform to study light matter interaction at the nanoscale. In this work we report on robust quantum emitters fabricated by thermal oxidation of tungsten disulphide multilayers. The emitters show robust, optically stable, linearly polarized luminescence at room temperature, can be modeled using a three level system, and exhibit moderate bunching. Overall, our results provide important insights into understanding of defect formation and quantum emitter activation in 2D materials.