{
  "annotation_id": "7b8438b1-d154-4e0b-8467-ac02a2cd5476",
  "date_created": "2026-03-02T18:00:49.939000Z",
  "date_modified": "2026-03-02T18:00:49.939000Z",
  "file_hash": "f32c64ee5c20d53f77163601a0b977767019162a02665f546091b094dc8148d2",
  "private": false,
  "record": {
    "abstract": "We present a new method of laser frequency locking in which the feedback\nsignal is directly proportional to the detuning from an atomic transition, even\nat detunings many times the natural linewidth of the transition. Our method is\na form of sub-Doppler polarization spectroscopy, based on measuring two Stokes\nparameters ($I_2$ and $I_3$) of light transmitted through a vapor cell. This\nextends the linear capture range of the lock loop by up to an order of\nmagnitude and provides equivalent or improved frequency discrimination as other\ncommonly used locking techniques.",
    "arxiv_id": "physics/0405113",
    "authors": [
      "A. Ratnapala",
      "C. J. Vale",
      "A. G. White",
      "M. D. Harvey",
      "N. Heckenberg",
      "H. Rubinsztein-Dunlop"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1364/OL.29.002704",
    "title": "Laser frequency locking by direct measurement of detuning",
    "url": "https://arxiv.org/abs/physics/0405113"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c1d39817-aa83-4eba-9a5d-212309c761f6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}