Giant photon bunching, superradiant pulse emission, and excitation trapping in quantum-dot nanolasers
MetadataShow full item record
Light is often characterized only by its classical properties, like intensity or coherence. When looking at its quantum properties, described by photon correlations, new information about the state of the matter generating the radiation can be revealed. In particular the difference between independent and entangled emitters, which is at the heart of quantum mechanics, can be made visible in the photon statistics of the emitted light. The well-studied phenomenon of superradiance occurs when quantum mechanical correlations between the emitters are present. Notwithstanding, superradiance was previously demonstrated only in terms of classical light properties. Here we provide the missing link between quantum correlations of the active material and photon correlations in the emitted radiation. We use the superradiance of quantum dots in a cavity-quantum electrodynamics laser to show a direct connection between superradiant pulse emission and distinctive changes in the photon correlation function. This directly demonstrates the importance of quantum-mechanical correlations and their transfer between carriers and photons in novel optoelectronic devices.
Jahnke , F , Gies , C , Aßmann , M , Bayer , M , Leymann , H A M , Foerster , A , Wiersig , J , Schneider , C , Kamp , M & Hoefling , S 2016 , ' Giant photon bunching, superradiant pulse emission, and excitation trapping in quantum-dot nanolasers ' , Nature Communications , vol. 7 , 11540 . https://doi.org/10.1038/ncomms11540
This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.