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

Yasutomo Ota, Naoto Kumagai, Shunsuke Ohkouchi, Masayuki Shirane, Masahiro Nomura, Satomi Ishida, Satoshi Iwamoto, Shinichi Yorozu, Yasuhiko Arakawa

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


We experimentally investigated the excitation power dependence of a strongly coupled quantum dot (QD)-photonic crystal nanocavity system by photoluminescence measurements. At a low excitation power regime, we observed a vacuum Rabi doublet emission at the 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.

Original languageEnglish
Article number122301
JournalApplied Physics Express
Issue number12
Publication statusPublished - 2009 Dec
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering
  • General Physics and Astronomy


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