{
  "annotation_id": "aecbb003-19eb-497f-b426-970b609dee13",
  "date_created": "2026-03-02T18:00:57.325000Z",
  "date_modified": "2026-03-02T18:00:57.325000Z",
  "file_hash": "e48e04128ce06de17559cbed86d92a6f2a16d2fd4ecf2396962b01c033e593b5",
  "private": false,
  "record": {
    "abstract": "Metal-based negative refractive index materials have been extensively studied\nin the microwave region. However, negative-index metamaterials have not been\nrealized at near-IR or visible fre-quencies due to difficulties of fabrication\nand to the generally poorer optical properties of metals at these wavelengths.\nIn this paper, we report the first fabrication and experimental verification of\na transversely structured metal-dielectric-metal multilayer exhibiting a\nnegative refractive in-dex around 2 mm. Both the amplitude and the phase of the\ntransmission and reflection were measured experimentally, and are in good\nagreement with a rigorous coupled wave analysis.",
    "arxiv_id": "physics/0504208",
    "authors": [
      "Shuang Zhang",
      "Wenjun Fan",
      "N. C. Panoiu",
      "K. J. Malloy",
      "R. M. Osgood",
      "S. R. J. Brueck"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1103/PhysRevLett.95.137404",
    "title": "Demonstration of Near-Infrared Negative-Index Materials",
    "url": "https://arxiv.org/abs/physics/0504208"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4b4ba061-a22b-49b5-b695-46ef27ac443b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}