{
  "annotation_id": "0c9558c9-afbe-4439-b0a8-7e611c2669d3",
  "date_created": "2026-03-02T18:00:53.687000Z",
  "date_modified": "2026-03-02T18:00:53.687000Z",
  "file_hash": "0a465b633fa12933decae8aab14a9fd2489743ae42606efa158c2bb4a29ff243",
  "private": false,
  "record": {
    "abstract": "We have performed angle-resolved measurements of spontaneous-emission spectra\nfrom laser dyes and quantum dots in opal and inverse opal photonic crystals.\nPronounced directional dependencies of the emission spectra are observed:\nangular ranges of strongly reduced emission adjoin with angular ranges of\nenhanced emission. It appears that emission from embedded light sources is\naffected both by the periodicity and by the structural imperfections of the\ncrystals: the photons are Bragg diffracted by lattice planes and scattered by\nunavoidable structural disorder. Using a model comprising diffuse light\ntransport and photonic band structure, we quantitatively explain the\ndirectional emission spectra. This provides detailed understanding of the\ntransport of spontaneously emitted light in real photonic crystals, which is\nessential in the interpretation of quantum-optics in photonic band-gap crystals\nand for applications wherein directional emission and total emission power are\ncontrolled.",
    "arxiv_id": "physics/0410056",
    "authors": [
      "Ivan S. Nikolaev",
      "Peter Lodahl",
      "Willem L. Vos"
    ],
    "categories": [
      "physics.pop-ph"
    ],
    "doi": "10.1103/PhysRevA.71.053813",
    "journal_ref": "Phys. Rev. A 71, 053813 (2005) [10 pages]",
    "title": "Quantitative analysis of directional spontaneous emission spectra from   light sources in photonic crystals",
    "url": "https://arxiv.org/abs/physics/0410056"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0b168cdc-deb8-4fe4-b20c-7be1bca772ca",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}