{
  "annotation_id": "bfc6e7fa-f0a0-4a04-8562-90873c80d74f",
  "date_created": "2026-03-02T18:00:32.268000Z",
  "date_modified": "2026-03-02T18:00:32.268000Z",
  "file_hash": "526b1082161ffb02d2d6b259966d25ba7ef4c5cba762b36f95829ee908a4ec90",
  "private": false,
  "record": {
    "abstract": "Using a high-frequency field superposed to a linearly polarized bichromatic\nlaser field composed by a wave with frequency $\\omega $ and a wave with\nfrequency $2\\omega $, we show it is possible to enhance the intensity of a\ngroup of high harmonics in orders of magnitude. These harmonics have\nfrequencies about 30% higher than the monochromatic-cutoff frequency, and,\nwithin the three-step-model framework, correspond to a set of electron\ntrajectories for which tunneling ionization is strongly suppressed. Particular\nfeatures in the observed enhancement suggest that the high-frequency field\nprovides an additional mechanism for the electron to reach the continuum. This\ninterpretation is supported by a time-frequency analysis of the harmonic yield.\nThe additional high frequency field permits the control of this group of\nharmonics leaving all other sets of harmonics practically unchanged, which is\nan advantage over schemes involving only bichromatic fields.",
    "arxiv_id": "physics/0012031",
    "authors": [
      "C. Figueira de Morisson Faria",
      "M. L. Du"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.64.023415",
    "title": "Enhancement of bichromatic high-harmonic generation with a   high-frequency field",
    "url": "https://arxiv.org/abs/physics/0012031"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e3d72f6f-a419-45ea-99d8-3f88e3268136",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}