Quantum Electrodynamics with Semiconductor Quantum Dots Coupled to Anderson‐localized Random Cavities
AIP Conference Proceedings(2011)
摘要
We demonstrate that the spontaneous emission decay rate of semiconductor quantum dots can be strongly modified by the coupling to disorder-induced Anderson-localized photonic modes. We experimentally measure, by means of time-resolved photoluminescence spectroscopy, the enhancement of the spontaneous emission decay rate by up to a factor 15 and an efficiency of channeling single photons into Anderson-localized modes reaching values as high as 94%. These results prove that disordered photonic media provide an efficient platform for quantum electrodynamics, offering a novel route to quantum information devices exploiting disorder as a resource rather than a nuisance.
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关键词
Quantum dots,Photonic crystal waveguides,Purcell factor,Anderson localization,Cavity quantum electrodynamics
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