Cerda-Mendez, E.A., Sarkar, D., Krizhanovskii, D.N. et al. (4 more authors) (2013) Exciton-polariton gap solitons in two-dimensional lattices. Physical Review Letters, 111 (14). ISSN 0031-9007
Abstract
We report on the two-dimensional gap-soliton nature of exciton-polariton macroscopic coherent phases (PMCP) in a square lattice with a tunable amplitude. The resonantly excited PMCP forms close to the negative mass M point of the lattice band structure with energy within the lattice band gap and its wave function localized within a few lattice periods. The PMCPs are well described as gap solitons resulting from the interplay between repulsive polariton-polariton interactions and effective attractive forces due to the negative mass. The solitonic nature accounts for the reduction of the PMCP coherence length and optical excitation threshold with increasing lattice amplitude.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2013 American Physical Society. Reproduced in accordance with the publisher's self-archiving policy. |
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: | 31 Oct 2014 13:31 |
Last Modified: | 31 Oct 2014 13:31 |
Published Version: | http://dx.doi.org/10.1103/PhysRevLett.111.146401 |
Status: | Published |
Publisher: | American Physical Society |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevLett.111.146401 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:81247 |