Fig. 1: Device structure and optical characterizations of CrSBr.
From: Magnetically-dressed CrSBr exciton-polaritons in ultrastrong coupling regime
a Schematic of a CrSBr flake coupled to a Tamm plasmon microcavity, composed of a bottom DBR, a thin CrSBr flake, and a top silver mirror. b Upper panel: experimental and fitted reflectance spectra of a CrSBr flake with a thickness of 177 nm along the a (left) and b (right) axes at normal incidence. The reference reflection R0 is taken on the bare Si substrate. Lower panel: calculated refractive index (n) and extinction coefficient (k) of CrSBr along the a (left) and b (right, containing two excitons) axes. Inset: crystallographic structure of CrSBr.
