Fig. 1: Coherent oscillations in a condensate formed in the LP branch.
From: Ultrafast dynamic stark shift of an exciton-polariton condensate
a Buildup of polarization in probe-induced LP condensate, starting from probe incidence at t = -T, and reemission (green arrow) prior to Stark beam incidence. b Incidence of the Stark beam at t = 0 modifies the condensate energy. Emission is depicted by the purple arrow. Interference of the polarization in (a) and (b) results in spectro-temporal oscillations in the differential reflectivity (c). Econd, and Econd+Stark represent the condensate energy in the absence and in the presence of the Stark beam, respectively.
