{
  "annotation_id": "3df9f0aa-a93d-428e-bd1c-f24cda3e60e3",
  "date_created": "2026-03-02T18:01:06.547000Z",
  "date_modified": "2026-03-02T18:01:06.547000Z",
  "file_hash": "540c0cf9564deca19e8fbfb2a4ecc51c021697aec08a524f0f86bae215ca2f04",
  "private": false,
  "record": {
    "abstract": "An optical vortex (phase singularity) with a high topological strength\nresides on the axis of a high-order light beam. The breakup of this vortex\nunder elliptic perturbation into a straight row of unit strength vortices is\ndescribed. This behavior is studied in helical Ince-Gauss beams and astigmatic,\ngeneralized Hermite-Laguerre-Gauss beams, which are perturbations of\nLaguerre-Gauss beams. Approximations of these beams are derived for small\nperturbation, in which a neighborhood of the axis can be approximated by a\npolynomial in the complex plane: a Chebyshev polynomial for Ince-Gauss beams,\nand a Hermite polynomial for astigmatic beams.",
    "arxiv_id": "physics/0602066",
    "authors": [
      "M. R. Dennis"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1364/OL.31.001325",
    "title": "Rows of optical vortices from elliptically perturbing a high-order beam",
    "url": "https://arxiv.org/abs/physics/0602066"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "92b1385d-6c04-45af-b9cb-dff7d4868ca7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}