{
  "annotation_id": "556c8b60-9d90-4b31-a92d-e3259073ba43",
  "date_created": "2026-03-02T18:00:59.932000Z",
  "date_modified": "2026-03-02T18:00:59.932000Z",
  "file_hash": "32ab93df1b2450b0c711589fc645c2d9a24893971c2c9d3dfc625462e81890a8",
  "private": false,
  "record": {
    "abstract": "We study the transmission properties for the waveguide bends composed by a\ncircular photonic crystal. Two types (Y and U type) of the waveguide bends\nutilizing the circular photonic crystal are studied. It has been shown,\ncompared with the conventional photonic crystal waveguide bends, transmission\nproperties for these bends can be significantly improved. Over a 6.4%\nbandwidth, less than 1-dB loss/bend are observed. U bent waveguide, i.e.,\n$180^o$ bend, can be easily realized with low loss using the circular photonic\ncrystal.",
    "arxiv_id": "physics/0509115",
    "authors": [
      "Sanshui Xiao",
      "Min Qiu"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1016/j.physleta.2005.04.040",
    "title": "Study of transmission properties for waveguide bends by use of a   circular photonic crystal",
    "url": "https://arxiv.org/abs/physics/0509115"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ff346f3a-9364-430b-b962-6cbc09f357b1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}