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HomeNanotechnologyDirect statement of split-mode exciton-polaritons in a single MoS2 nanotube

Direct statement of split-mode exciton-polaritons in a single MoS2 nanotube


A single nanotube synthesized from a transition metallic dichalcogenide (TMDC) displays robust exciton resonances and, as well as, can assist optical whispering gallery modes. This mix is promising for observing exciton-polaritons with out an exterior cavity. Nonetheless, conventional energy-momentum-resolved detection strategies are unsuitable for this tiny object. As an alternative, we suggest to make use of break up optical modes in a twisted nanotube with the flattened cross-section, the place a steadily reducing hole between the other partitions results in a change in mode vitality, just like the impact of the barrier width on the eigenenergies within the double-well potential. Utilizing micro-reflectance spectroscopy, we investigated the wealthy sample of polariton branches in single MoS2 tubes with each variable and fixed gaps. Noticed Rabi splitting within the 40–60 meV vary is corresponding to that for a MoS2 monolayer in a microcavity. Our outcomes, primarily based on the polariton dispersion measurements and polariton dynamics evaluation, current a single TMDC nanotube as an ideal polaritonic construction for nanophotonics.

Graphical abstract: Direct observation of split-mode exciton-polaritons in a single MoS2 nanotube

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