{
  "annotation_id": "b070fe1e-bcdf-47c2-8f22-f7a41124c5c1",
  "date_created": "2026-03-02T18:01:18.384000Z",
  "date_modified": "2026-03-02T18:01:18.384000Z",
  "file_hash": "bf347188b8a79caa5123af4cab55d08ea21a241d78e801aac0bb51ce16f1d6ea",
  "private": false,
  "record": {
    "abstract": "We present a new family of diffractive lenses whose structure is based on the\ncombination of two concepts: photon sieve and fractal zone plates with variable\nlacunarity. The focusing properties of different members of this family are\nexamined. It is shown that the sieves provide a smoothing effect on the higher\norder foci of a conventional lacunar fractal zone plate. However, the\ncharacteristic self-similar axial response of the fractal zone plates is always\npreserved.",
    "arxiv_id": "physics/0701210",
    "authors": [
      "Fernando Gimenez",
      "Walter D. Furlan",
      "Juan A. Monsoriu"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1016/j.optcom.2007.03.086",
    "title": "Lacunar fractal photon sieves",
    "url": "https://arxiv.org/abs/physics/0701210"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8384cf72-ef72-443a-b923-f7fa5c792f41",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}