Extended Data Fig. 2: Effect of the spot size.
From: Polariton Bose–Einstein condensate from a bound state in the continuum
a, b, Polariton condensation under a pumping spot of size S ≈ 30 μm; for pumping densities well above the condensation threshold two modes are visible: M0 and M1, with an energy separation of about 1 meV. c, d, Polariton condensation under a pumping spot of size S ≈ 120 μm; for pumping densities well above the condensation threshold three modes are visible: M0, M1 and M2, with an energy separation of about 0.3 meV. PL, photoluminescence. Light intensity increases from dark to light colours in Extended Data Figs. 2–4.
