Figure 3
From: Polariton condensation in an organic microcavity utilising a hybrid metal-DBR mirror
The effect of the number of hybrid mirror pairs on microcavity optical properties. (a) Plots the angle-dependent reflectivity measurement of a 4-pair hybrid mirror cavity. Fits of upper (UPB) and lower (LPB) polariton branches (blue solid lines) are made using a standard two-level oscillator model. The dispersion of the cavity photon mode (Ecav) and the exciton energy (Eexc) are also shown (black dashed lines). (b) Shows the Rabi splitting for the hybrid mirror cavities and the DBR control, where good agreement can be seen between experimental (light red, two-level oscillator) and theoretical (dark red, TMR) values. The modelled penetration of the electromagnetic field into the bottom mirror (grey) is also shown here. (c) Shows the linewidth of the LPB for the hybrid mirror and DBR cavities, comparing experimental (light blue) and theoretical (dark blue, from TMR) values. In both (b) and (c), the x-axis labels ‘HX’ correspond to the hybrid mirrors, where X is the number of DBR pairs on top of the Ag, and ‘DBR’ corresponds to the 10-pair DBR. In (d), we plot the modelled Q-factor for hybrid mirror cavities with cavity mode at 547 nm. The modelled Q-factor of the DBR control cavity is indicated by a horizontal blue dotted line.
