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Valley coherent exciton-polaritons in a monolayer semiconductor

Abstract:

Two-dimensional transition metal dichalcogenides (TMDs) provide a unique possibility to generate and read-out excitonic valley coherence using linearly polarized light, opening the way to valley information transfer between distant systems. However, these excitons have short lifetimes (ps) and efficiently lose their valley coherence via the electron-hole exchange interaction. Here, we show that control of these processes can be gained by embedding a monolayer of WSe2 in an optical microcavity...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1038/s41467-018-07249-z

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Role:
Author
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Grant:
Horizon 2020 research and innovation programme under ITN SpinNANO Marie Sklodowska-Curie grant agreement 676108
Leverhulme Trust More from this funder
John Fell Fund More from this funder
Publisher:
Springer Nature Publisher's website
Journal:
Nature Communications Journal website
Volume:
9
Pages:
Article: 4797
Publication date:
2018-11-15
Acceptance date:
2018-10-19
DOI:
EISSN:
2041-1723
Pubs id:
pubs:929577
URN:
uri:db0eefdc-eebc-4409-bdac-1653358eadb9
UUID:
uuid:db0eefdc-eebc-4409-bdac-1653358eadb9
Local pid:
pubs:929577

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