Electrically tunable organic-inorganic hybrid polaritons with monolayer WS2
| Autor: | Flatten, Lucas C., Coles, David M., He, Zhengyu, Lidzey, David. G., Taylor, Robert A., Warner, Jamie H., Smith, Jason M. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1038/ncomms14097 |
| Popis: | Exciton-polaritons are quasiparticles consisting of a linear superposition of photonic and excitonic states, offering potential for nonlinear optical devices. The excitonic component of the polariton provides a finite Coulomb scattering cross section, such that the different types of exciton found in organic materials (Frenkel) and inorganic materials (Wannier-Mott) produce polaritons with different interparticle interaction strength. A hybrid polariton state with distinct excitons provides a potential technological route towards in-situ control of nonlinear behaviour. Here we demonstrate a device in which hybrid polaritons are displayed at ambient temperatures, the excitonic component of which is part Frenkel and part Wannier-Mott, and in which the dominant exciton type can be switched with an applied voltage. The device consists of an open microcavity containing both organic dye and a monolayer of the transition metal dichalcogenide WS$_2$. Our findings offer a perspective for electrically controlled nonlinear polariton devices at room temperature. Comment: 16 pages, 11 figures |
| Databáze: | arXiv |
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