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Vacuum Rabi splitting with a single quantum dot in a photonic crystal nanocavity.
- Source :
-
Nature . 11/11/2004, Vol. 432 Issue 7014, p200-203. 4p. - Publication Year :
- 2004
-
Abstract
- Cavity quantum electrodynamics (QED) systems allow the study of a variety of fundamental quantum-optics phenomena, such as entanglement, quantum decoherence and the quantum-classical boundary. Such systems also provide test beds for quantum information science. Nearly all strongly coupled cavity QED experiments have used a single atom in a high-quality-factor (high-Q) cavity. Here we report the experimental realization of a strongly coupled system in the solid state: a single quantum dot embedded in the spacer of a nanocavity, showing vacuum-field Rabi splitting exceeding the decoherence linewidths of both the nanocavity and the quantum dot. This requires a small-volume cavity and an atomic-like two-level system. The photonic crystal slab nanocavity-which traps photons when a defect is introduced inside the two-dimensional photonic bandgap by leaving out one or more holes-has both high Q and small modal volume V, as required for strong light-matter interactions. The quantum dot has two discrete energy levels with a transition dipole moment much larger than that of an atom, and it is fixed in the nanocavity during growth. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00280836
- Volume :
- 432
- Issue :
- 7014
- Database :
- Academic Search Index
- Journal :
- Nature
- Publication Type :
- Academic Journal
- Accession number :
- 15013718
- Full Text :
- https://doi.org/10.1038/nature03119