Conference paper
Quantum Optics with Quantum Dots in Photonic Wires: Basics and Application to “Ultrabright” Single Photon Sources
We review recent experimental and theoretical results, which highlight the strong interest of the photonic wire (PW) geometry for quantum optics experiments with solid-state emitters, and for quantum optoelectronic devices. By studying single InAs QDs embedded within single-mode cylindrical GaAs PW, we have noticeably observed a very strong (16 fold) inhibition of their spontaneous emission rate in the thin-wire limit, and a nearly perfect funnelling of their spontaneous emission into the guided mode for larger PWs.
We present a novel single -photon-source based on the emission of a quantum dot embedded in an engineered PW, comprising a tapered tip so as to control the radiation pattern, and an integrated hybrid bottom mirror. Unlike microcavity-based devices, this source displays for the first time simultaneously a record-high efficiency (0.73 photon per pulse) and a very low g(2) parameter.
Numerical simulations show that an efficiency higher than 0.9 can be obtained for optimized structures, under either optical or electrical pumping.
Language: | English |
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Publisher: | IEEE |
Year: | 2011 |
Pages: | 1-6 |
Proceedings: | 13th International Conference on Transparent Optical Networks (ICTON) |
ISBN: | 1457708809 , 1457708817 , 1457708825 , 9781457708800 , 9781457708817 and 9781457708824 |
ISSN: | 21612064 and 21612056 |
Types: | Conference paper |
DOI: | 10.1109/ICTON.2011.5970790 |
ORCIDs: | Gregersen, Niels |
Excitons GaAs Gallium arsenide III-V semiconductors InAs Mirrors Optical pumping Photonics Quantum dots Wires electrical pumping gallium arsenide indium compounds microcavities microcavity based devices nanowire optical pumping optoelectronic devices photonic wires quantum dot quantum dots quantum optics quantum optoelectronic devices radiation pattern record high efficiency single photon source solid state emitters spontaneous emission spontaneous emission rate tapering thin wire limit ultrabright single photon sources waveguide