Large Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature
Manipulation of light-matter interaction is critical in modern physics, especially in the strong coupling regime, where the generated half-light, half-matter bosonic quasiparticles as polaritons are important for fundamental quantum science and applications of optoelectronics and nonlinear optics. T...
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Institue of Optics and Electronics, Chinese Academy of Sciences
2019
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oai:doaj.org-article:de1078c8730049aaac3f1a99f31591b62021-11-11T09:53:35ZLarge Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature2096-457910.29026/oea.2019.190008https://doaj.org/article/de1078c8730049aaac3f1a99f31591b62019-05-01T00:00:00Zhttp://www.oejournal.org/article/doi/10.29026/oea.2019.190008https://doaj.org/toc/2096-4579Manipulation of light-matter interaction is critical in modern physics, especially in the strong coupling regime, where the generated half-light, half-matter bosonic quasiparticles as polaritons are important for fundamental quantum science and applications of optoelectronics and nonlinear optics. Two-dimensional transition metal dichalcogenides (TMDs) are ideal platforms to investigate the strong coupling because of their huge exciton binding energy and large absorption coefficients. Further studies on strong exciton-plasmon coupling by combining TMDs with metallic nanostructures have generated broad interests in recent years. However, because of the huge plasmon radiative damping, the observation of strong coupling is significantly limited at room temperature. Here, we demonstrate that a large Rabi splitting (~300 meV) can be achieved at ambient conditions in the strong coupling regime by embedding Ag-WS2 heterostructure in an optical microcavity. The generated quasiparticle with part-plasmon, part-exciton and part-light is analyzed with Hopfield coefficients that are calculated by using three-coupled oscillator model. The resulted plasmon-exciton polaritonic hybrid states can efficiently enlarge the obtained Rabi splitting, which paves the way for the practical applications of polaritonic devices based on ultrathin materials.Li BowenZu ShuaiZhang ZhepengZheng LihengJiang QiaoDu BowenLuo YangGong YongjiZhang YanfengLin FengShen BoZhu XingAjayan Pulickel M.Fang ZheyuInstitue of Optics and Electronics, Chinese Academy of Sciencesarticlerabi splittingstrong couplingtransition metal dichalcogenidesoptical microcavitysurface plasmonsOptics. LightQC350-467ENOpto-Electronic Advances, Vol 2, Iss 5, Pp 190008-1-190008-9 (2019) |
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DOAJ |
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DOAJ |
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EN |
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rabi splitting strong coupling transition metal dichalcogenides optical microcavity surface plasmons Optics. Light QC350-467 |
| spellingShingle |
rabi splitting strong coupling transition metal dichalcogenides optical microcavity surface plasmons Optics. Light QC350-467 Li Bowen Zu Shuai Zhang Zhepeng Zheng Liheng Jiang Qiao Du Bowen Luo Yang Gong Yongji Zhang Yanfeng Lin Feng Shen Bo Zhu Xing Ajayan Pulickel M. Fang Zheyu Large Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature |
| description |
Manipulation of light-matter interaction is critical in modern physics, especially in the strong coupling regime, where the generated half-light, half-matter bosonic quasiparticles as polaritons are important for fundamental quantum science and applications of optoelectronics and nonlinear optics. Two-dimensional transition metal dichalcogenides (TMDs) are ideal platforms to investigate the strong coupling because of their huge exciton binding energy and large absorption coefficients. Further studies on strong exciton-plasmon coupling by combining TMDs with metallic nanostructures have generated broad interests in recent years. However, because of the huge plasmon radiative damping, the observation of strong coupling is significantly limited at room temperature. Here, we demonstrate that a large Rabi splitting (~300 meV) can be achieved at ambient conditions in the strong coupling regime by embedding Ag-WS2 heterostructure in an optical microcavity. The generated quasiparticle with part-plasmon, part-exciton and part-light is analyzed with Hopfield coefficients that are calculated by using three-coupled oscillator model. The resulted plasmon-exciton polaritonic hybrid states can efficiently enlarge the obtained Rabi splitting, which paves the way for the practical applications of polaritonic devices based on ultrathin materials. |
| format |
article |
| author |
Li Bowen Zu Shuai Zhang Zhepeng Zheng Liheng Jiang Qiao Du Bowen Luo Yang Gong Yongji Zhang Yanfeng Lin Feng Shen Bo Zhu Xing Ajayan Pulickel M. Fang Zheyu |
| author_facet |
Li Bowen Zu Shuai Zhang Zhepeng Zheng Liheng Jiang Qiao Du Bowen Luo Yang Gong Yongji Zhang Yanfeng Lin Feng Shen Bo Zhu Xing Ajayan Pulickel M. Fang Zheyu |
| author_sort |
Li Bowen |
| title |
Large Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature |
| title_short |
Large Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature |
| title_full |
Large Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature |
| title_fullStr |
Large Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature |
| title_full_unstemmed |
Large Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature |
| title_sort |
large rabi splitting obtained in ag-ws2 strong-coupling heterostructure with optical microcavity at room temperature |
| publisher |
Institue of Optics and Electronics, Chinese Academy of Sciences |
| publishDate |
2019 |
| url |
https://doaj.org/article/de1078c8730049aaac3f1a99f31591b6 |
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