A fundamental requirement for photonic technologies is the ability to control the confinement
and propagation of light. Widely utilized platforms include two-dimensional (2D) optical
microcavities in which electromagnetic waves are confined between either metallic or multi-
layer dielectric distributed Bragg reflectors. However, the fabrication complexities of thick
Bragg reflectors and high losses in metallic mirrors have motivated the quest for efficient and
compact mirrors. Recently, 2D transition metal dichalcogenides hosting tightly bound …