Fig. 3
From: Strong-coupling of WSe2 in ultra-compact plasmonic nanocavities at room temperature
Signature of strong coupling in individual NPoM constructs. a White-light dark-field scattering, and b PL/irradiation setups. c Normalised dark-field scattering spectra of individual NPoM constructs each with N L = 12 WSe2 spacer, black dashed line at A exciton position. d, e Laser-induced tuning of NPoM plasmon resonance via growth of lower facet, mapping out anti-crossing around A exciton. e Hybrid plasmon–exciton branches (plexcitons, ω ±) with Rabi-spitting Ω R = 137 meV. Blue dots correspond to extracted experimental values and orange to coupled oscillator model
