Hyperspectral study of the coupling between trions in WSe$_2$ monolayers to a circular Bragg grating cavity

Abstract

Circular Bragg gratings compose a very appealing photonic platform and nanophotonic interface for the controlled light-matter coupling of emitters in nanomaterials. Here, we discuss the integration of exfoliated monolayers of WSe$_2$ with GaInP Bragg gratings. We apply hyperspectral imaging to our coupled system, and explore the spatio-spectral characteristics of our coupled monolayer-cavity system. Our work represents a valuable step towards the integration of atomically thin quantum emitters in semiconductor nanophotonic cavities.

Keywords

• Circular Bragg grating
• 2D materials
• WSe$_2$
• Quantum electrodynamics
• Light matter coupling
• Excitons