{
  "annotation_id": "e4efb9bd-acf8-41ff-8799-789ed4abd2c4",
  "date_created": "2026-03-02T18:00:53.469000Z",
  "date_modified": "2026-03-02T18:00:53.469000Z",
  "file_hash": "364a3f922dc7461ea1a51439281e0fa6711f8ed6773ec2d0f6e93c4ce891e399",
  "private": false,
  "record": {
    "abstract": "We present an experimental technique enabling mechanical-noise free,\ncavity-enhanced frequency measurements of an atomic transition and its\nhyperfine structure. We employ the 532nm frequency doubled output from a Nd:YAG\nlaser and an iodine vapour cell. The cell is placed in a traveling-wave\nFabry-Perot interferometer (FPI) with counter-propagating pump and probe beams.\nThe FPI is locked using the Pound-Drever-Hall (PDH) technique. Mechanical noise\nis rejected by differencing pump and probe signals. In addition, this\ndifferenced error signal gives a sensitive measure of differential\nnon-linearity within the FPI.",
    "arxiv_id": "physics/0411107",
    "authors": [
      "Glenn de Vine",
      "David E. McClelland",
      "John D. Close",
      "Malcolm B. Gray"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1364/OL.30.001219",
    "title": "Pump-probe differencing technique for cavity-enhanced, noise-canceling   saturation laser spectroscopy",
    "url": "https://arxiv.org/abs/physics/0411107"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f0586c82-8a23-4fd7-b98b-f3e92abdcf83",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}