Quantum plasmonic control of trions in a picocavity with monolayer WS2

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dc.citation.articleNumbereaau8763en_US
dc.citation.issueNumber10en_US
dc.citation.journalTitleScience Advancesen_US
dc.citation.volumeNumber5en_US
dc.contributor.authorHe, Zheen_US
dc.contributor.authorHan, Zehuaen_US
dc.contributor.authorYuan, Jiangtanen_US
dc.contributor.authorSinyukov, Alexander M.en_US
dc.contributor.authorEleuch, Hichemen_US
dc.contributor.authorNiu, Chaoen_US
dc.contributor.authorZhang, Zhenrongen_US
dc.contributor.authorLou, Junen_US
dc.contributor.authorHu, Jonathanen_US
dc.contributor.authorVoronine, Dmitri V.en_US
dc.contributor.authorScully, Marlan O.en_US
dc.date.accessioned2020-02-14T16:39:41Zen_US
dc.date.available2020-02-14T16:39:41Zen_US
dc.date.issued2019en_US
dc.description.abstractMonitoring and controlling the neutral and charged excitons (trions) in two-dimensional (2D) materials are essential for the development of high-performance devices. However, nanoscale control is challenging because of diffraction-limited spatial resolution of conventional far-field techniques. Here, we extend the classical tip-enhanced photoluminescence based on tip-substrate nanocavity to quantum regime and demonstrate controlled nano-optical imaging, namely, tip-enhanced quantum plasmonics. In addition to improving the spatial resolution, we use the scanning probe to control the optoelectronic response of monolayer WS2 by varying the neutral/charged exciton ratio via charge tunneling in Au-Ag picocavity. We observe trion “hot spots” generated by varying the picometer-scale probe-sample distance and show the effects of weak and strong coupling, which depend on the spatial location. Our experimental results are in agreement with simulations and open an unprecedented view of a new range of quantum plasmonic phenomena with 2D materials that will help to design new quantum optoelectronic devices.en_US
dc.identifier.citationHe, Zhe, Han, Zehua, Yuan, Jiangtan, et al.. "Quantum plasmonic control of trions in a picocavity with monolayer WS2." <i>Science Advances,</i> 5, no. 10 (2019) AAAS: https://doi.org/10.1126/sciadv.aau8763.en_US
dc.identifier.digitalQuantum-plasmonic-controlen_US
dc.identifier.doihttps://doi.org/10.1126/sciadv.aau8763en_US
dc.identifier.urihttps://hdl.handle.net/1911/108040en_US
dc.language.isoengen_US
dc.publisherAAASen_US
dc.rightsDistributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/en_US
dc.titleQuantum plasmonic control of trions in a picocavity with monolayer WS2en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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