{
  "annotation_id": "d1499d4a-815c-4dca-aecc-2426d8cfc0db",
  "date_created": "2026-03-02T18:01:00.585000Z",
  "date_modified": "2026-03-02T18:01:00.585000Z",
  "file_hash": "26eaccbb3098711fe78b85e91c9d333dfdbf5706d3b5d8b7e59147b8622684b3",
  "private": false,
  "record": {
    "abstract": "The principle of coherent Dicke narrowing in a thin vapour cell, in which\nsub-Doppler spectral lineshapes are observed under a normal irradiation for a\nl/2 thickness, is generalized to two-photon spectroscopy. Only the sum of the\ntwo wave vectors must be normal to the cell, making the two-photon scheme\nhighly versatile. A comparison is provided between the Dicke narrowing with\ncopropagating fields, and the residual Doppler-broadening occurring with\ncounterpropagating geometries. The experimental feasibility is discussed on the\nbasis of a first observation of a two-photon resonance in a 300 nm-thick Cs\ncell. Extension to the Raman situation is finally considered.",
    "arxiv_id": "physics/0506025",
    "authors": [
      "Gabriel Dutier",
      "Petko Todorov",
      "Ismah\u00e8ne Hamdi",
      "Isabelle Maurin",
      "Solomon Saltiel",
      "Daniel Bloch",
      "Martial Ducloy"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.72.040501",
    "title": "Dicke Coherent Narrowing in Two-Photon and Raman Spectroscopy of Thin   Vapour Cells",
    "url": "https://arxiv.org/abs/physics/0506025"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "11c72961-17cb-4982-8bcf-109da7c960f5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}