Investigation of the spectral triplet in strongly coupled quantum dot-nanocavity system

Details Investigation of the spectral triplet in strongly coupled quantum dot-nanocavity system Investigation of the spectral triplet in strongly coupled quantum dot-nanocavity system

2009-06-25

arxiv.org/abs/0906.4622v1

Physics

Condensed Matter

Other Condensed Matter

9 pages, 3 figures

Scientific paper

We experimentally investigated the excitation power dependence of a strongly coupled quantum dot (QD)-photonic crystal nanocavity system by photoluminescence (PL) measurements. At a low-excitation power regime, we observed vacuum Rabi doublet emission at QD-cavity resonance condition. With increasing excitation power, in addition to the doublet, a third emission peak appeared. This observed spectral change is unexpected from conventional atomic cavity quantum electrodynamics. The observations can be attributed to featured pumping processes in the semiconductor QD-cavity system.

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