{
  "annotation_id": "7c533971-c77b-4d86-ba53-dfd413b89328",
  "date_created": "2026-03-02T18:00:46.925000Z",
  "date_modified": "2026-03-02T18:00:46.925000Z",
  "file_hash": "5e68b880137e8c768c7f5bfca361419f5a14c5607f60c93b705d524c5150c910",
  "private": false,
  "record": {
    "abstract": "We demonstrate generation and frequency doubling of unit charge vortices in a\nlinear astigmatic resonator. Topological instability of the double charge\nharmonic vortices leads to well separated vortex cores that are shown to\nrotate, and become anisotropic, as the resonator is tuned across resonance.",
    "arxiv_id": "physics/0310030",
    "authors": [
      "O-K Lim",
      "B Boland",
      "M Saffman",
      "W. Krolikowski"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1088/1464-4258/6/5/032",
    "journal_ref": "J. Opt. A: Pure Appl. Opt. 6, 486-489 (2004)",
    "title": "Creation, doubling, and splitting, of vortices in intracavity second   harmonic generation",
    "url": "https://arxiv.org/abs/physics/0310030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "498657a1-9550-4461-b3b6-58c465218efc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}