Dynamic changes in multiple quantum dots-cavity coupled system.

Abstract: In this work, we theoretically analyze the dynamic changes introduced by multiple quantum dots which strongly couple to a single mode microcavity, in both time and frequency domain. Pulse excitation condition is considered. For temporal dynamics, we demonstrate an increased oscillation frequency and non-monotonic decreased oscillation caused by the cooperativity of multiple quantum dots. An oscillation relationship between maximum cavity output photons and QDs numbers is observed. For frequency domain, we reveal enhanced relative intensity of doublet and attenuated relative intensity of single peak in two QDs case. Moreover, for short pulse excitation, the doublet in the time-dependent photon luminescence spectrum is broadened compared with one QD case. [Copyright &y& Elsevier]