{
  "annotation_id": "4b47e209-fb15-49fd-b604-9a71551ddea8",
  "date_created": "2026-03-02T18:01:04.279000Z",
  "date_modified": "2026-03-02T18:01:04.279000Z",
  "file_hash": "a9500cb9e4469d213a9e1ed3a659ec36fd6e946ab6d88427854280fd83640f29",
  "private": false,
  "record": {
    "abstract": "We present waveguides with photonic crystal cores, supporting energy\npropagation in subwavelength regions with a mode structure similar to that in\ntelecom fibers. We design meta-materials for near-, mid-, and far-IR\nfrequencies, and demonstrate efficient energy transfer to and from regions\nsmaller than 1/25-th of the wavelength. Both positive- and negative-refractive\nindex light transmissions are shown. Our approach, although demonstrated here\nin circular waveguides for some specific frequencies, is easily scalable from\noptical to IR to THz frequency ranges, and can be realized in a variety of\nwaveguide geometries. Our design may be used for ultra high-density energy\nfocusing, nm-resolution sensing, near-field microscopy, and high-speed\nall-optical computing.",
    "arxiv_id": "physics/0512189",
    "authors": [
      "Alexander A. Govyadinov",
      "Viktor A. Podolskiy"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1103/PhysRevB.73.155108",
    "journal_ref": "Physical Review B 73, 155108 (2006)",
    "title": "Meta-material photonic funnels for sub-diffraction light compression and   propagation",
    "url": "https://arxiv.org/abs/physics/0512189"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b638de50-9a12-4a97-a95d-debf5cb2c72b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}