Exciton-polaritons are mutually interacting quantum hybridizations of confined photons and electronic excitations. Here, we demonstrate a system of optically guided, electrically polarized exciton-polaritons ("dipolaritons") that displays up to 200-fold enhancement of the polariton-polariton interaction strength compared to unpolarized polaritons. The magnitude of the dipolar interaction enhancement can be turned on and off and can be easily tuned over a very wide range by varying the applied polarizing electric field. The large interaction strengths and the very long propagation distances of these fully guided dipolaritons open up new opportunities for realizing complex quantum circuitry and quantum simulators, as well as topological states based on exciton-polaritons, for which the interactions between polaritons need to be large and spatially or temporally controlled. The results also raise fundamental questions on the origin of these large enhancements.
Bibliographical noteFunding Information:
The work at the Hebrew University had a financial support from the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering; the United States-Israel Binational Science Foundation (BSF grant 2016112); and the Israeli Science Foundation (grant no. 1319/12). The work at Princeton University was funded by the Gordon and Betty Moore Foundation through EPiQS initiative grant GBMF4420 and by NSF MRSEC grant DMR-1420541.
© 2018 The Authors, some rights reserved.