{
  "annotation_id": "cbc165a8-1bf7-4eef-b825-cc0eb84158c3",
  "date_created": "2026-03-02T18:02:20.752000Z",
  "date_modified": "2026-03-02T18:02:20.752000Z",
  "file_hash": "6c0c823ed7ed08eba52ff389f6a085e05c0c9574a133300f37146c0213467a01",
  "private": false,
  "record": {
    "abstract": "We report a source of free electron pulses based on a field emission tip\nirradiated by a low-power femtosecond laser. The electron pulses are shorter\nthan 70 fs and originate from a tip with an emission area diameter down to 2\nnm. Depending on the operating regime we observe either photofield emission or\noptical field emission with up to 200 electrons per pulse at a repetition rate\nof 1 GHz. This pulsed electron emitter, triggered by a femtosecond oscillator,\ncould serve as an efficient source for time-resolved electron interferometry,\nfor time-resolved nanometric imaging and for synchrotrons.",
    "arxiv_id": "quant-ph/0507241",
    "authors": [
      "Peter Hommelhoff",
      "Yvan Sortais",
      "Anoush Aghajani-Talesh",
      "Mark A. Kasevich"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.96.077401",
    "journal_ref": "Phys. Rev. Lett. 96, 077401 (2006)",
    "title": "A Femtosecond Nanometer Free Electron Source",
    "url": "https://arxiv.org/abs/quant-ph/0507241"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5c0af8c3-5a06-4b6d-8b1b-4a21b7b4f533",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}