{
  "id": "cond-mat/0612461",
  "version": "v3",
  "published": "2006-12-18T16:48:45.000Z",
  "updated": "2007-06-08T09:40:01.000Z",
  "title": "Theory of parametric amplification in in superlattices",
  "authors": [
    "Timo Hyart",
    "Alexey V. Shorokhov",
    "Kirill N. Alekseev"
  ],
  "comment": "4 pages, 4 figures. V2: typo in axis caption of fig 2 is corrected. V3: typo in ref 9 is corrected, stylistic changes in the main text, new refs 18-21 are added, and change in the title",
  "journal": "Phys. Rev. Lett. 98 (2007) 220404",
  "doi": "10.1103/PhysRevLett.98.220404",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.stat-mech"
  ],
  "abstract": "We consider a high-frequency response of electrons in a single miniband of superlattice subject to dc and ac electric fields. We show that Bragg reflections in miniband result in a parametric resonance which is detectable using ac probe field. We establish theoretical feasibility of phase-sensitive THz amplification at the resonance. The parametric amplification does not require operation in conditions of negative differential conductance. This prevents a formation of destructive high-field domains inside the superlattice.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2007-06-08T09:40:01.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "parametric amplification",
      "destructive high-field domains inside",
      "ac probe field",
      "ac electric fields",
      "single miniband"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}