{
  "annotation_id": "4b3dab7a-a480-4c6f-b555-1c01ff9b8999",
  "date_created": "2026-03-02T18:00:38.968000Z",
  "date_modified": "2026-03-02T18:00:38.968000Z",
  "file_hash": "5e85d56c7b44ccb81f0171b9774a1e776f3964b90e1280a43c00dbb504887387",
  "private": false,
  "record": {
    "abstract": "Tunneling of optical pulses at 1.5 micron wavelength through double-barrier\nperiodic fiber Bragg gratings is experimentally investigated. Tunneling time\nmeasurements as a function of barrier distance show that, far from the\nresonances of the structure, the transit time is paradoxically short, implying\nSuperluminal propagation, and almost independent of the distance between the\nbarriers. These results are in agreement with theoretical predictions based on\nphase time analysis and also provide an experimental evidence, in the optical\ncontext, of the analogous phenomenon expected in Quantum Mechanics for\nnon-resonant superluminal tunneling of particles across two successive\npotential barriers. [Attention is called, in particular, to our last Figure].\nPACS nos.: 42.50.Wm, 03.65.Xp, 42.70.Qs, 03.50.De, 03.65.-w, 73.40.Gk",
    "arxiv_id": "physics/0201013",
    "authors": [
      "S. Longhi",
      "P. Laporta",
      "M. Belmone",
      "E. Recami"
    ],
    "categories": [
      "physics.optics",
      "physics.class-ph",
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevE.65.046610",
    "journal_ref": "Physical Review E65 (2002) 046610",
    "title": "Measurement of Superluminal optical tunneling times in double-barrier   photonic bandgaps",
    "url": "https://arxiv.org/abs/physics/0201013"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "12db0ac5-d1b2-4ed2-927c-086388d812f5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}