Fig. 4: Real-space characteristics of trapped polariton condensate.
From: Polariton condensate far-detuned from exciton resonance in WS2 bound states in the continuum
a Gaussian-profiled femto pulsed laser with varying sizes—2.6 μm, 3.8 μm, and 4.8 μm—used to control lateral confinement of the condensate. b Energy-space resolved image showing the trapped states: M0, the ground state, and M1, the first excited state. c Energy level spacing (\({{\hslash }}\omega\)) between M0 and M1 in the function of diameter of pump laser. Dashed line and scatters for calculation and experiment, respectively.
