Liu, F., Martins, L.M.P., Brash, A.J. et al. (5 more authors) (2016) Ultrafast Depopulation of a Quantum Dot by LA-phonon-assisted Stimulated Emission. Physical Review B , 93. 161407(R. ISSN 2469-9950
Abstract
We demonstrate ultrafast \emph{incoherent} depopulation of a quantum dot from above to below the transparency point using LA-phonon-assisted emission stimulated by a red-shifted laser pulse. The QD is turned from a weakly vibronic system into a strongly vibronic one by laser driving which enables the phonon-assisted relaxation between the excitonic components of two dressed states. The depopulation is achieved within a laser pulse-width-limited time of 20~ps and exhibits a broad tuning range of a few meV. Our experimental results are well reproduced by path-integral calculations.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 American Physical Society. This is an author produced version of a paper subsequently published in Physical Review B. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | cond-mat.mes-hall; cond-mat.mes-hall |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 17 May 2016 15:41 |
Last Modified: | 22 Mar 2018 18:24 |
Published Version: | http://dx.doi.org/10.1103/PhysRevB.93.161407 |
Status: | Published |
Publisher: | American Physical Society |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevB.93.161407 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:98919 |