Full text loading...
(Color online) (a) Scheme of a circular mesa. Only the first four layers of the Bragg mirrors are represented. (b) Scheme of a potential trap with two confined levels: the ground level and one excited state . (c) AFM image of a -diameter circular mesa on the surface of the top mirror. The lateral scales are in microns and the vertical scale is in nanometers.
Photoluminescence spectra of a circular diameter mesa at two different positions: (a) and (b) (see Fig. 3). The origin of the horizontal axis corresponds to the exciton’s energy. Grey circles: lower (2D ) and upper (2D ) 2D polaritons around the mesa. Dark circles: lower and upper polaritons of the ground level of the mesa. Triangles: lower and upper polaritons of the first excited level of the mesa. (a) and polariton states are quasiphotonic. (b) The excitonic and photonic components are comparable for the confined polariton states. Other confined levels are visible on both spectra but are not labeled for sake of clarity.
Energy of the photoluminescence peaks as a function of the spot position along the wedge. Rabi splitting of for the 2D polaritons (0D polaritons). (a) and (b) indicate the positions at which the spectra in Fig. 2 have been taken. Zero detuning for around .
Article metrics loading...