Lange, C., Cancellieri, E., Panna, D. et al. (6 more authors) (2018) Ultrafast control of strong light-matter coupling. New Journal of Physics, 20 (1). 013032. ISSN 1367-2630
Abstract
We dynamically modulate strong light–matter coupling in a GaAs/AlGaAs microcavity using intense ultrashort laser pulses tuned below the interband exciton energy, which induce a transient Stark shift of the cavity polaritons. For 225-fs pulses, shorter than the cavity Rabi cycle period of 1000 fs, this shift decouples excitons and cavity photons for the duration of the pulse, interrupting the periodic energy exchange between photonic and electronic states. For 1500-fs pulses, longer than the Rabi cycle period, however, the Stark shift does not affect the strong coupling. The two regimes are marked by distinctly different line shapes in ultrafast reflectivity measurements—regardless of the Stark field intensity. The crossover marks the transition from adiabatic to diabatic switching of strong light–matter coupling.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 The Author(s). Published by IOP Publishing Ltd on behalf of Deutsche Physikalische Gesellschaft. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. (http://creativecommons.org/licenses/by/3.0) |
Keywords: | strong light–matter coupling; dynamic Stark effect; exciton–polaritons; ultrafast control |
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: | 25 May 2018 09:59 |
Last Modified: | 25 May 2018 09:59 |
Published Version: | https://doi.org/10.1088/1367-2630/aa9fd0 |
Status: | Published |
Publisher: | IOP Publishing |
Refereed: | Yes |
Identification Number: | 10.1088/1367-2630/aa9fd0 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:131139 |