Journal
NATURE PHOTONICS
Volume 6, Issue 4, Pages 238-242Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nphoton.2012.23
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Funding
- Deutsche Forschungs-gemeinschaft [730]
- International Max Planck Research School for Advanced Materials
- Carl-Zeiss-Stiftung
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Emission from a resonantly excited quantum emitter is a fascinating research topic within the field of quantum optics and is a useful source for different types of quantum light fields. The resonance spectrum consists of a single spectral line that develops into a triplet above saturation of the quantum emitter(1-3). The three closely spaced photon channels from the resonance fluorescence have different photon statistical signatures(4). We present a detailed photon statistics analysis of the resonance fluorescence emission triplet from a solid-state-based artificial atom, that is, a semiconductor quantum dot. The photon correlation measurements demonstrate both 'single' and 'cascaded' photon emission from the Mollow triplet sidebands(5). The bright and narrow sideband emission (5.9 x 10(6) photons per second into the first lens) can be conveniently frequency-tuned by laser detuning over 15 times its linewidth (Delta v approximate to 1.0 GHz). These unique properties make the Mollow triplet sideband emission a valuable light source for quantum light spectroscopy and quantum information applications, for example.
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