{
  "annotation_id": "0bd79d61-3af5-473a-9bb4-bb7c6553c02c",
  "date_created": "2026-03-02T18:00:57.054000Z",
  "date_modified": "2026-03-02T18:00:57.054000Z",
  "file_hash": "a344d3f2ed26a10a0ad17c28cb3c5338d1bc7686db73df8226b5702e4c31593b",
  "private": false,
  "record": {
    "abstract": "We study the bandgap properties of two-dimensional photonic crystals created\nby a lattice of rods or holes conformed in a symmetric or asymmetric triangular\nstructure. Using the plane-wave analysis, we calculate a minimum value of the\nrefractive index contrast for opening both partial and full two-dimensional\nspectral gaps for both TM and TE polarized waves. We also analyze the effect of\nellipticity of rods and holes and their orientation on the threshold value and\nthe relative size of the bandgap.",
    "arxiv_id": "physics/0501072",
    "authors": [
      "Aaron Matthews",
      "Xue-Hua Wang",
      "Yuri Kivshar",
      "Min Gu"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1007/s00340-005-1814-5",
    "title": "Bandgap properties of two-dimensional low-index photonic crystals",
    "url": "https://arxiv.org/abs/physics/0501072"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1ba51c2a-ba34-48ef-a4e4-3e9f4980c9f0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}