{
  "id": "1809.09571",
  "version": "v1",
  "published": "2018-09-25T16:15:22.000Z",
  "updated": "2018-09-25T16:15:22.000Z",
  "title": "Valley polarization of exciton-polaritons in monolayer WSe2 in a tunable microcavity",
  "authors": [
    "M. Król",
    "K. Lekenta",
    "R. Mirek",
    "K. Łempicka",
    "D. Stephan",
    "K. Nogajewski",
    "M. R. Molas",
    "A. Babiński",
    "M. Potemski",
    "J. Szczytko",
    "B. Piętka"
  ],
  "comment": "7 pages, 7 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Monolayer transition metal dichalcogenides, known for exhibiting strong excitonic resonances, constitute a very interesting and versatile platform for investigation of light-matter interactions. In this work we report on a strong coupling regime between excitons in monolayer WSe2 and photons confined in an open, voltage-tunable dielectric microcavity. The tunability of our system allows us to extend the exciton-polariton state over a wide energy range and, in particular, to bring the excitonic component of the lower polariton mode into resonance with other excitonic transitions in monolayer WSe2. With selective excitation of spin-polarized exciton-polaritons we demonstrate the valley polarization when the polaritons from the lower branch come into resonance with a bright trion state in monolayer WSe2 and valley depolarization when they are in resonance with a dark trion state.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-09-25T16:15:22.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "monolayer wse2",
      "valley polarization",
      "tunable microcavity",
      "exciton-polariton",
      "monolayer transition metal dichalcogenides"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}