{
  "id": "1807.09143",
  "version": "v1",
  "published": "2018-07-24T14:19:00.000Z",
  "updated": "2018-07-24T14:19:00.000Z",
  "title": "Exciton spin relaxation in InAs/InGaAlAs/InP(001) quantum dashes emitting near 1.55 μm",
  "authors": [
    "M. Syperek",
    "Ł. Dusanowski",
    "M. Gawełczyk",
    "G. Sęk",
    "A. Somers",
    "J. P. Reithmaier",
    "S. Höfling",
    "J. Misiewicz"
  ],
  "comment": "4 pages, 3 figures",
  "journal": "Appl. Phys. Lett. 109, 193108 (2016)",
  "doi": "10.1063/1.4966997",
  "categories": [
    "cond-mat.mes-hall",
    "physics.app-ph",
    "quant-ph"
  ],
  "abstract": "Exciton spin and related optical polarization in self-assembled InAs/In$_{0.53}$Ga$_{0.23}$Al$_{0.24}$As/InP(001) quantum dashes emitting at 1.55 {\\mu}m are investigated by means of polarization- and time-resolved photoluminescence, as well as photoluminescence excitation spectroscopy, at cryogenic temperature. We investigate the influence of highly non-resonant and quasi-resonant optical spin pumping conditions on spin polarization and spin memory of the quantum dash ground state. We show that a spin pumping scheme, utilizing the longitudinal-optical-phonon-mediated coherent scattering process, can lead to the polarization degree above 50%. We discuss the role of intrinsic asymmetries in the quantum dash that influence values of the degree of polarization and its time evolution.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-07-24T14:19:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum dashes emitting",
      "exciton spin relaxation",
      "inas/ingaalas/inp",
      "quantum dash ground state",
      "polarization"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "AIP"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}