{
  "annotation_id": "906e953d-914d-458b-a79b-00fa988d3603",
  "date_created": "2026-03-02T18:00:46.867000Z",
  "date_modified": "2026-03-02T18:00:46.867000Z",
  "file_hash": "2eea6d4e7a069fea98db1d6103facc9589202540d9c80111f10d1d06221fdb9f",
  "private": false,
  "record": {
    "abstract": "We demonstrate a technique for frequency measurements of atomic transitions\nwith a precision of 30 kHz. The frequency is measured using a ring-cavity\nresonator whose length is calibrated against a reference laser locked to the\n$D_2$ line of $^{87}$Rb, the frequency of which is known to 10 kHz. We have\nused this to measure the hyperfine structure in the $5P_{3/2}$ state of\n$^{85}$Rb. We obtain precise values for the hyperfine constants $A=25.041(6)$\nMHz and $B=26.013(25)$ MHz, and a value of 77.992(20) MHz for the isotope shift\nin the $D_2$ line.",
    "arxiv_id": "physics/0307094",
    "authors": [
      "Ayan Banerjee",
      "Dipankar Das",
      "Vasant Natarajan"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "doi": "10.1364/OL.28.001579",
    "journal_ref": "Optics Letters, vol. 28 (17), pp. 1579-1581 (2003)",
    "title": "Precise frequency measurements of atomic transitions using a   Rb-stabilized resonator",
    "url": "https://arxiv.org/abs/physics/0307094"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "84d3f185-c3f7-4bab-8746-4f0527a24d5a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}