{
  "annotation_id": "62919b22-81fe-4481-af33-52b1b19499d1",
  "date_created": "2026-03-02T18:00:31.754000Z",
  "date_modified": "2026-03-02T18:00:31.754000Z",
  "file_hash": "db49599834fae521e63abb8151515bceb62cbb74b7510557cfafa0f2b8eece46",
  "private": false,
  "record": {
    "abstract": "We have demonstrated a 165 micron oblate spheroidal microcavity with free\nspectral range 383.7 GHz (3.06nm), resonance bandwidth 25 MHz (Q ~ 10^7) at\n1550nm, and finesse F \u003e 10^4. The highly oblate spheroidal dielectric\nmicrocavity combines very high Q-factor, typical of microspheres, with vastly\nreduced number of excited whispering-gallery (WG) modes (by two orders of\nmagnitude). The very large free spectral range in the novel microcavity - few\nhundred instead of few GigaHertz in typical microspheres - is desirable for\napplications in spectral analysis, narrow-linewidth optical and RF oscillators,\nand cavity QED.",
    "arxiv_id": "physics/0009092",
    "authors": [
      "Vladimir S. Ilchenko",
      "Michael L. Gorodetsky",
      "X. Steve Yao",
      "Lute Maleki"
    ],
    "categories": [
      "physics.optics",
      "physics.chem-ph",
      "physics.ins-det",
      "quant-ph"
    ],
    "doi": "10.1364/OL.26.000256",
    "title": "Microtorus: a High Finesse Microcavity with Whispering-Gallery Modes",
    "url": "https://arxiv.org/abs/physics/0009092"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8ecdd952-973a-49d1-9350-6a34dad69990",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}