Fig. 4: Blueshifts and the optical gain spectrum. | Communications Physics

Fig. 4: Blueshifts and the optical gain spectrum.

From: Mechanisms of blueshifts in organic polariton condensates

Fig. 4

a The amplified spontaneous emission spectrum and the blueshift, ΔE, extracted from the binning of scattering plot (b) that shows single-shot blueshift realizations across the whole sample area. c Vacuum Rabi splitting \(\hbar {\mathrm{\Omega }}_0\) and d detuning δ extracted from the multiple angle-dependent reflectivity measurements carried out across the sample area. The Rabi splitting remains constant across the whole-sample area with an average value of (116 ± 1.5) meV (red dashed curve). e The exciton fraction \(\left| {X_{k_\parallel = 0}} \right|^2\) of the polariton wave function at \(k_\parallel = 0\), calculated from \(\hbar {\mathrm{\Omega }}_0\) and δ shown above in c and d, respectively. Red dashed curves in d and e correspond to analytical fit functions for δ and \(\left| {X_{k_\parallel = 0}} \right|^2\), respectively. Error bars in a correspond to standard deviations of the blueshift (y-axis) and lower polariton state (x-axis) calculated for each binning range. Error bars in ce correspond to standard deviations of the best-fit results of the angle-dependent reflectivity measurements.

Back to article page