{
  "annotation_id": "0bf8bffa-ae25-4245-88fc-7b60df2bc6f7",
  "date_created": "2026-03-02T18:00:53.350000Z",
  "date_modified": "2026-03-02T18:00:53.350000Z",
  "file_hash": "36d5d4868abfe11373e1866ab9fffabe21d4a70a326f89d588bacb5fac6d6c24",
  "private": false,
  "record": {
    "abstract": "Dispersion relations for dipolar modes propagating along a chain of metal\nnanoparticles are calculated by solving the full Maxwell equations, including\nradiation damping. The nanoparticles are treated as point dipoles, which means\nthe results are valid only for a/d \u003c= 1/3, where a is the particle radius and d\nthe spacing. The discrete modes for a finite chain are first calculated, then\nthese are mapped onto the dispersion relations appropriate for the infinite\nchain. Computed results are given for a chain of 50-nm diameter Ag spheres\nspaced by 75 nm. We find large deviations from previous quasistatic results:\nTransverse modes interact strongly with the light line. Longitudinal modes\ndevelop a bandwidth more than twice as large, resulting in a group velocity\nthat is more than doubled. All modes for which k_mode \u003c= w/c show strongly\nenhanced decay due to radiation damping.",
    "arxiv_id": "physics/0408003",
    "authors": [
      "W. H. Weber",
      "G. W. Ford"
    ],
    "categories": [
      "physics.optics",
      "physics.gen-ph"
    ],
    "doi": "10.1103/PhysRevB.70.125429",
    "journal_ref": "Physical Review B, Vol. 70, 125429 (2004)",
    "title": "Propagation of optical excitations by dipolar interactions in metal   nanoparticle chains",
    "url": "https://arxiv.org/abs/physics/0408003"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fe92a4fe-ba4f-4fab-bb7f-8996da8a9f39",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}