{
  "annotation_id": "8ca38216-ab20-4466-8478-83d38979b838",
  "date_created": "2026-03-02T18:01:24.725000Z",
  "date_modified": "2026-03-02T18:01:24.725000Z",
  "file_hash": "40316ac65e0bc0176c82742ce17ba5f979672dee0f2c7aa7efd74df07abf650d",
  "private": false,
  "record": {
    "abstract": "In order to study the possible phase conjugation of optical near-fields, it\nis necessary to go beyond the slowly varying envelope- and electric dipole\napproximations that are normally applied in phase conjugation studies where\nspatially non-decaying (or at least slowly decaying) modes are mixed. In the\npresent dissertation, the minimal coupling Hamiltonian is used to create a\nmicroscopic theoretical description of degenerate four-wave mixing. It is a\nsemiclassical description where the electromagnetic field is treated as a\nclassical quantity and the active medium is treated quantum mechanically.\nNumerical results are given for a single-level quantum well (exclusively\nintraband contributions) and for a two-level quantum well (mainly interband\ncontribution). Focusing of a phase conjugated field is also discussed.\n(Full-length abstracts in Danish and English included).",
    "arxiv_id": "physics/9902014",
    "authors": [
      "Torsten Andersen"
    ],
    "categories": [
      "physics.optics",
      "cond-mat.mes-hall",
      "quant-ph"
    ],
    "title": "Theoretical Study of Phase Conjugation in Mesoscopic Interaction Volumes",
    "url": "https://arxiv.org/abs/physics/9902014"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e1c537c4-00cc-40e2-9a9a-0f3d4258869f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}