{
  "annotation_id": "3e0d293c-8154-45eb-b63a-597762128b43",
  "date_created": "2026-03-02T18:01:18.153000Z",
  "date_modified": "2026-03-02T18:01:18.153000Z",
  "file_hash": "883371773420f434c750afca636724bed6767829223d1cc34fa309063538b612",
  "private": false,
  "record": {
    "abstract": "A femtosecond mode-locked laser is used for the first time as a broadband\ninfrared source for high resolution Fourier transform absorption spectroscopy.\nDemontration is made with a Cr^4+:YAG laser. The entire nu_1+nu_3\nvibration-rotation band region of acetylene, observed after passing through a\nsingle pass 80-cm long cell, is simultaneously recorded between 1480 and 1600\nnm, in 7.9 s with a signal to noise ratio equal to 1000. Two hot bands of the\nmost abundant acetylene isotopologue and the n1+n3 band of the ^13C^12CH_2 are\nalso present. The noise equivalent absorption coefficient at one second\naveraging is equal to 7 10^{-7} cm^{-1}.Hz^{-1/2} per spectral element.",
    "arxiv_id": "physics/0703169",
    "authors": [
      "Julien Mandon",
      "Guy Guelachvili",
      "Nathalie Picqu\u00e9",
      "Fr\u00e9d\u00e9ric Druon",
      "Patrick Georges"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1364/OL.32.001677",
    "journal_ref": "Optics Letters 32, 12 (15/06/2007) 1677-1679",
    "title": "Femtosecond laser Fourier transform absorption spectroscopy",
    "url": "https://arxiv.org/abs/physics/0703169"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "47393d5d-51da-45b1-b110-1770afa32075",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}