期刊
NATURE COMMUNICATIONS
卷 6, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/ncomms9579
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资金
- EPSRC Programme [EP/J007544/1, EP/M012727/1]
- Graphene Flagship
- FP7 ITN S3NANO
- ERC [EXCIPOL 320570, Hetero2D]
- Leverhulme Trust
- Royal Academy of Engineering
- US Army Research Office
- Royal Society
- EPSRC [EP/K007173/1]
- EPSRC [EP/K007173/1, EP/M012727/1, EP/J007544/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/M012727/1, EP/J007544/1, EP/K007173/1] Funding Source: researchfish
Layered materials can be assembled vertically to fabricate a new class of van der Waals heterostructures a few atomic layers thick, compatible with a wide range of substrates and optoelectronic device geometries, enabling new strategies for control of light-matter coupling. Here, we incorporate molybdenum diselenide/hexagonal boron nitride (MoSe2/hBN) quantum wells in a tunable optical microcavity. Part-light-part-matter polariton eigenstates are observed as a result of the strong coupling between MoSe2 excitons and cavity photons, evidenced from a clear anticrossing between the neutral exciton and the cavity modes with a splitting of 20 meV for a single MoSe2 monolayer, enhanced to 29 meV in MoSe2/hBN/MoSe2 double-quantum wells. The splitting at resonance provides an estimate of the exciton radiative lifetime of 0.4 ps. Our results pave the way for room-temperature polaritonic devices based on multiple-quantum-well van der Waals heterostructures, where polariton condensation and electrical polariton injection through the incorporation of graphene contacts may be realized.
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