{
  "annotation_id": "c1c6608c-291f-458f-b5d6-de10c88e8e79",
  "date_created": "2026-03-02T18:01:14.872000Z",
  "date_modified": "2026-03-02T18:01:14.872000Z",
  "file_hash": "218421698fad34b5d31569bde5699121e0788ea116412230e29bfd1c6b5cacee",
  "private": false,
  "record": {
    "abstract": "Experimental demonstration of a negative permeability due to near-field\ncoupling of periodic thin silver strips is presented. Two samples with\ndifferent strip thicknesses are fabricated; optical measurements of the samples\nconfirm our initial design projections by showing the real part of permeability\nto be about -1 for the sample with thinner strips and -0.8 for the sample with\nthicker strips at wavelengths of 770 nm and 720 nm.",
    "arxiv_id": "physics/0610118",
    "authors": [
      "Hsiao-Kuan Yuan",
      "Uday K. Chettiar",
      "Wenshan Cai",
      "Alexander V. Kildishev",
      "Vladimir P. Drachev",
      "Alexandra Boltasseva",
      "Vladimir M. Shalaev"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1364/OE.15.001076",
    "title": "A negative permeability material at red light",
    "url": "https://arxiv.org/abs/physics/0610118"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3fc70abe-0545-401b-99b5-d34f03bed0d0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}