Fig. 2: Interaction of photonic modes in a microcavity.
From: Unveiling asymmetric topological photonic states in anisotropic 2D perovskite microcavities
a Schematic of confined optical cavity modes in a microcavity. b Dispersion of multiple photonic cavity modes, with quantum number \(q=1-5\), subject to TE-TM and XY splitting. c Calculated interaction of two modes with different polarization and opposite parity. Along the \({k}_{y}\) axis for \({k}_{x}=0\), the modes do not intersect, while along the \({k}_{x}\) axis for \({k}_{y}=0\), they exhibit anti-crossing. d Angle-resolved photoluminescence of MC1 showing the anti-crossing of multiple cavity modes with RD interaction at room temperature. e Simulation of the interacting cavity modes from (d) as described by the effective Hamiltonian Eq. (1). f Transfer matrix simulation of the reflectivity, showing the same interactions along with the calculated crystal Euler angles
