{
  "annotation_id": "50006bd4-6556-4350-89e0-4d619eea2cbd",
  "date_created": "2026-03-02T18:01:17.371000Z",
  "date_modified": "2026-03-02T18:01:17.371000Z",
  "file_hash": "ab9aae9eb0b6d5688ced6a505e001148333a36466fcc5d90dcb3babfa5ef1874",
  "private": false,
  "record": {
    "abstract": "Two devices for subwave length focusing of light are explored. The first one\nis a thin film of a well reflecting metal which the converging beam of surface\nplasmons with a wave number $h\u003e\u003e\\omega_0/c$ is excited on. The waist of this\nbeam has a cross section that is much smaller than $\\lambda_0^2$. The second\ndevice is a linear nanoantenna with a gap in the middle. A resonance plasmon is\nexcited in the antenna. The field in the gap concentrates on the spot that is\nmuch smaller than $\\lambda_0^2$. In both cases the effect of field enhancement\nin the spot of subwave length focusing is greatly decreased because of\npropagation losses in the first case and because of a small excitation cross\nsection in the second case. It is suggested to improve on the effect of\nexcitation of the film and the nanoantenna by means of interaction with an\nadjacent atom or quantum dot.",
    "arxiv_id": "physics/0703076",
    "authors": [
      "V. S. Zuev",
      "G. Ya. Zueva"
    ],
    "categories": [
      "physics.optics"
    ],
    "title": "Subwave length light focusing by surface plasmons on a silver film",
    "url": "https://arxiv.org/abs/physics/0703076"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bb5249f8-8a21-40dd-ba48-219605e312b6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}