{
  "annotation_id": "77dd6016-84e4-4ad4-8699-37c4df8d3166",
  "date_created": "2026-03-02T18:00:39.670000Z",
  "date_modified": "2026-03-02T18:00:39.670000Z",
  "file_hash": "76740a3df8f326c251aa4e481068ff2ce886768611f87318d143cb7a7f847888",
  "private": false,
  "record": {
    "abstract": "VFEL lasing in system with dynamical undulator is described. In this system\nradiation of long wavelength creates the undulator for lasing on shorter\nwavelength. Two diffraction gratings with different spatial periods form VFEL\nresonator. The grating with longer period pumps the resonator with long\nwavelength radiation to provide necessary amplitude of undulator field. The\ngrating with shorter period makes mode selection for short wavelength\nradiation. Lasing of such a system in terahertz frequency range is discussed.",
    "arxiv_id": "physics/0209028",
    "authors": [
      "V. G. Baryshevsky",
      "K. G. Batrakov"
    ],
    "categories": [
      "physics.optics",
      "physics.gen-ph"
    ],
    "doi": "10.1016/S0168-9002(03)00830-1",
    "title": "Use of Dynamical Undulator Mechanism to Produce Short Wavelength   Radiation in Volume FEL (VFEL)",
    "url": "https://arxiv.org/abs/physics/0209028"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5348fcbb-d122-46ce-810b-ca581ec22ac6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}