Fluctuation induced luminescence sidebands in the emission spectra of resonantly driven quantum dots

We describe how complex fluctuations of the local environment of an optically active quantum dot can leave rich fingerprints in its emission spectrum. A new feature, termed "Fluctuation Induced Luminescence" (FIL), is observed to arise from extremely rare fluctuation events that have a dra...

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Bibliographic Details
Published in:arXiv.org 2012-07
Main Authors: Laussy, Fabrice P, Jovanov, Vase, Elena del Valle, Bechtold, Alexander, Kapfinger, Stephan, Müller, Kai, Koch, Sebastian, Laucht, Arne, Eissfeller, Thomas, Bichler, Max, Abstreiter, Gerhard, Finley, Jonathan J
Format: Article
Language:English
Subjects:
Black swan event
Electrical noise
Emission spectra
Luminescence
Optical activity
Quantum dots
Sidebands
Variation
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Summary:We describe how complex fluctuations of the local environment of an optically active quantum dot can leave rich fingerprints in its emission spectrum. A new feature, termed "Fluctuation Induced Luminescence" (FIL), is observed to arise from extremely rare fluctuation events that have a dramatic impact on the response of the system-so called "black swan" events. A quantum dissipative master equation formalism is developed to describe this effect phenomenologically. Experiments performed on single quantum dots subject to electrical noise show excellent agreement with our theory, producing the characteristic FIL sidebands.
ISSN:2331-8422