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Highly nonlinear trion-polaritons in a monolayer semiconductor

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  • معلومة اضافية
    • بيانات النشر:
      Nature Research
    • الموضوع:
      2020
    • Collection:
      University of Exeter: Open Research Exeter (ORE)
    • نبذة مختصرة :
      This is the final version. Available from Nature Research via the DOI in this record. ; Highly nonlinear optical materials with strong effective photon-photon interactions are required for ultrafast and quantum optical signal processing circuitry. Here we report strong Kerr-like nonlinearities by employing efficient optical transitions of charged excitons (trions) observed in semiconducting transition metal dichalcogenides (TMDCs). By hybridising trions in monolayer MoSe2 at low electron densities with a microcavity mode, we realise trion-polaritons exhibiting significant energy shifts at small photon fluxes due to phase space filling. We find the ratio of trion- to neutral exciton–polariton interaction strength is in the range from 10 to 100 in TMDC materials and that trion-polariton nonlinearity is comparable to that in other polariton systems. The results are in good agreement with a theory accounting for the composite nature of excitons and trions and deviation of their statistics from that of ideal bosons and fermions. Our findings open a way to scalable quantum optics applications with TMDCs. ; Royal Academy of Engineering (RAE) ; EPSRC ; Ministry of Education and Science of the Russian Federation ; Icelandic research fund ; European Union ; Marie Sklodowska-Curie
    • ISSN:
      2041-1723
    • Relation:
      Vol. 11: 3589; EP/N031776/1; EP/M012727/1; EP/P026850/1; 14.Y26.31.0015; 3.2614.2017/4.6; 163082-051; 676108; http://hdl.handle.net/10871/122487; Nature Communications
    • الرقم المعرف:
      10.1038/s41467-020-17340-z
    • الدخول الالكتروني :
      http://hdl.handle.net/10871/122487
      https://doi.org/10.1038/s41467-020-17340-z
    • Rights:
      © 2020, The Author(s). Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. ; http://creativecommons.org/licenses/by/4.0/
    • الرقم المعرف:
      edsbas.7362299B