{
  "annotation_id": "23c44318-c587-4e61-96e3-d777e7991ba9",
  "date_created": "2026-03-02T18:00:50.261000Z",
  "date_modified": "2026-03-02T18:00:50.261000Z",
  "file_hash": "c5f93a11ce3fa2e31b4201e8398e749a80205a340d389c28654cb7fdbffcc2de",
  "private": false,
  "record": {
    "abstract": "In this paper we analyze the properties of chirped optical X-shaped pulses\npropagating in material media without boundaries. We show that such\n(\"superluminal\") pulses may recover their transverse and longitudinal shape\nafter some propagation distance, while the ordinary chirped gaussian-pulses can\nrecover their longitudinal shape only (since gaussian pulses suffer a\nprogressive spreading during their propagation). We therefore propose the use\nof chirped optical X-type pulses to overcome the problems of both dispersion\nand diffraction during the pulse propagation.",
    "arxiv_id": "physics/0405059",
    "authors": [
      "Michel Zamboni-Rached",
      "Hugo E. Hernandez-Figueroa",
      "Erasmo Recami"
    ],
    "categories": [
      "physics.optics",
      "physics.class-ph"
    ],
    "doi": "10.1364/JOSAA.21.002455",
    "journal_ref": "Journal of the Optical Society of America A21 (2004) 2455-2463",
    "title": "Chirped optical X-shaped pulses in material media",
    "url": "https://arxiv.org/abs/physics/0405059"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a04855f2-0c38-4e2e-b34c-40e0f789c072",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}