{
  "annotation_id": "238bb778-c629-4ba2-a96a-55bd7f35c400",
  "date_created": "2026-03-02T18:00:39.758000Z",
  "date_modified": "2026-03-02T18:00:39.758000Z",
  "file_hash": "1c69887ee7643d02a1a76415ccd7348504b83241031415d58b4af5c02940a89e",
  "private": false,
  "record": {
    "abstract": "A Monte Carlo simulation has been performed to track light rays in\ncylindrical fibres by ray optics. The trapping efficiencies for skew and\nmeridional rays in active fibres and distributions of characteristic quantities\nfor all trapped light rays have been calculated. The simulation provides new\nresults for curved fibres, where the analytical expressions are too complex to\nbe solved. The light losses due to sharp bending of fibres are presented as a\nfunction of the ratio of curvature to fibre radius and bending angle. It is\nshown that a radius of curvature to fibre radius ratio of greater than 65\nresults in a loss of less than 10% with the loss occuring in the initial stage\nof the bend (at bending angles Phi circa pi/8 rad).",
    "arxiv_id": "physics/0209058",
    "authors": [
      "C. P. Achenbach",
      "J. H. Cobb"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1088/1464-4258/5/3/316",
    "journal_ref": "J. Opt. A: Pure Appl. Opt. 5 (2003) 239-249",
    "title": "Computational studies of light acceptance and propagation in straight   and curved optical fibres",
    "url": "https://arxiv.org/abs/physics/0209058"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5ab56612-50d3-40dd-b972-8b154aa12e28",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}