{
  "annotation_id": "94c2d7c1-d81b-482d-aeeb-ef211fcb703b",
  "date_created": "2026-03-02T18:01:00.816000Z",
  "date_modified": "2026-03-02T18:01:00.816000Z",
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  "record": {
    "abstract": "The set of realizable refractive indices as a function of frequency is\nconsidered. For passive media we give bounds for the refractive index variation\nin a finite bandwidth. Special attention is given to the loss and index\nvariation in the case of left-handed materials.",
    "arxiv_id": "physics/0507001",
    "authors": [
      "Johannes Skaar",
      "Kristian Seip"
    ],
    "categories": [
      "physics.optics",
      "physics.gen-ph"
    ],
    "doi": "10.1088/0022-3727/39/6/032",
    "journal_ref": "J. Phys. D: Appl. Phys. 39 (2006) 1226-1229.",
    "title": "Bounds for the refractive indices of metamaterials",
    "url": "https://arxiv.org/abs/physics/0507001"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6048be50-5479-414f-8ef5-a0032183e56c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}