Fig. 2: Strong exciton-photon coupling in MoS2 bilayers. | Nature Communications

Fig. 2: Strong exciton-photon coupling in MoS2 bilayers.

From: Interspecies exciton interactions lead to enhanced nonlinearity of dipolar excitons and polaritons in MoS2 homobilayers

Fig. 2

a Schematics of the tunable open microcavity composed of a bottom DBR and a top semi-transparent silver mirror. b, c Low temperature (4K) RC spectra measured as a function of the cavity-exciton detuning (Δ = Ecav − Eexc) for cavity scans across b XA and c hIX energies. White dotted lines show the fitting obtained using the coupled oscillator model providing the Rabi splittings ΩhIX = 19 meV and \({\Omega }_{{{{{{{{{\rm{X}}}}}}}}}_{{{{{{{{\rm{A}}}}}}}}}}=38\) meV. d RC spectra measured for the cavity-exciton detunings in the vicinity of the anticrossing between hIX and the cavity mode. e Dipolariton dispersion measured with circularly polarized detection for 8 T magnetic field. The orange and black solid curves are the coupled oscillator model fits for σ+ and σ− detection, respectively. The positions of the Zeeman-split hIX peaks are shown by dashed lines. f σ+ (orange) and σ− (black) RC spectra measured at 8 T at the hIX-cavity anticrossing. Fitting with two Lorentzians (solid lines) is shown.

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