{
  "annotation_id": "a39d3c25-00b7-416d-aeea-b10c14696520",
  "date_created": "2026-03-02T18:01:00.153000Z",
  "date_modified": "2026-03-02T18:01:00.153000Z",
  "file_hash": "a56cd8e0505e51802cd237a8efb55bd308bb29f5fe3d44c08955d7489a5b5e33",
  "private": false,
  "record": {
    "abstract": "Negative-index refraction is achieved in a lamellar composite with\nepsilon-negative (ENG) and mu-negative (MNG) materials stacked alternatively.\nBased on the effective medium approximation, simultaneously negative effective\npermittivity and permeability of such a lamellar composite are obtained\ntheoretically and further proven by full-wave simulations. Consequently, the\nfamous left-handed metamaterial comprising split ring resonators and wires is\ninterpreted as an analogy of such an ENG-MNG lamellar composite. In addition,\nbeyond the effective medium approximation, the propagating field squeezed near\nthe ENG/MNG interface is demonstrated to be left-handed surface waves with\nbackward phase velocity.",
    "arxiv_id": "physics/0508110",
    "authors": [
      "Z. G. Dong",
      "S. N. Zhu",
      "H. Liu"
    ],
    "categories": [
      "physics.optics",
      "physics.gen-ph"
    ],
    "doi": "10.1088/1009-1963/15/8/023",
    "journal_ref": "Chinese Physics,15(8) 1772(2006).",
    "title": "Negative-Index Refraction in a Lamellar Composite with Alternating   Single Negative Layers",
    "url": "https://arxiv.org/abs/physics/0508110"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "83f20008-7808-4136-9490-aaea9d915fb0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}