{
  "annotation_id": "8f78dbdc-54ff-4db9-9a97-d3fc59617b81",
  "date_created": "2026-03-02T18:00:46.659000Z",
  "date_modified": "2026-03-02T18:00:46.659000Z",
  "file_hash": "3103c83f1c793c9d4c2f22afca61a466b89407ee7ccef09a270a1e4a53f6cb39",
  "private": false,
  "record": {
    "abstract": "We address the long-standing unresolved problem concerning the V-parameter in\na photonic crystal fiber (PCF). Formulate the parameter appropriate for a\ncore-defect in a periodic structure we argue that the multi-mode cut-off occurs\nat a wavelength lambda* which satisfies V_PCF(lambda*)=pi. Comparing to\nnumerics and recent cut-off calculations we confirm this result.",
    "arxiv_id": "physics/0307010",
    "authors": [
      "N. A. Mortensen",
      "J. R. Folkenberg",
      "M. D. Nielsen",
      "K. P. Hansen"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1364/OL.28.001879",
    "journal_ref": "Opt. Lett. 28, 1879 (2003).",
    "title": "Modal cut-off and the V-parameter in photonic crystal fibers",
    "url": "https://arxiv.org/abs/physics/0307010"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7a7a94ca-9421-4a38-a5a6-557b3abaa7d4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}