Enhanced spontaneous emission rate from single InAs quantum dots in a photonic crystal nanocavity at telecom wavelengths

L.P. Balet, M. Francardi, A. Gerardino, N.J.G. Chauvin, B. Alloing, C. Zinoni, C. Monat, L. Li, N. Thomas, Le, R. Houdré, A. Fiore

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Abstract

The authors demonstrate coupling at 1.3 micro m between single InAs quantum dots (QDs) and a mode of a two dimensional photonic crystal (PhC) defect cavity with a quality factor of 15 000. By spectrally tuning the cavity mode, they induce coupling with excitonic lines. They perform a time integrated and time-resolved photoluminescence and measure an eightfold increase in the spontaneous emission rate inducing a coupling efficiency of 96%. These measurements indicate the potential of single QDs in PhC cavities as efficient single-photon emitters for fiber-based quantum information processing applications. [on SciFinder (R)]
Original languageEnglish
Article number123115
Pages (from-to)123115-1/3
Number of pages3
JournalApplied Physics Letters
Volume91
Issue number12
DOIs
Publication statusPublished - 2007

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