{
  "annotation_id": "3e87ead9-3d99-48de-9c1c-bcf728ee0f53",
  "date_created": "2026-03-02T18:00:36.295000Z",
  "date_modified": "2026-03-02T18:00:36.295000Z",
  "file_hash": "b86694bc1ff620197be510cbf074bd493e0b7b636635fca3e3cf9519d69a1da7",
  "private": false,
  "record": {
    "abstract": "We investigate the self-phase modulation of intense femtosecond laser pulses\npropagating in an ionizing gas and its effects on collective properties of\nhigh-order harmonics generated in the medium. Plasmas produced in the medium\nare shown to induce a positive frequency chirp on the leading edge of the\npropagating laser pulse, which subsequently drives high harmonics to become\npositively chirped. In certain parameter regimes, the plasma-induced positive\nchirp can help to generate sharply peaked high harmonics, by compensating for\nthe dynamically-induced negative chirp that is caused by the steep intensity\nprofile of intense short laser pulses.",
    "arxiv_id": "physics/0108043",
    "authors": [
      "Jung-Hoon Kim",
      "Chang Hee Nam"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1103/PhysRevA.65.033801",
    "title": "Plasma-Induced Frequency Chirp of Intense Femtosecond Lasers and Its   Role in Shaping High-Order Harmonic Spectral Lines",
    "url": "https://arxiv.org/abs/physics/0108043"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "61cfc829-30c5-406f-a612-647e524c1b03",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}