{
  "annotation_id": "c7c53f7d-390e-4d14-bbb5-3a6e0546b2c9",
  "date_created": "2026-03-02T18:01:14.868000Z",
  "date_modified": "2026-03-02T18:01:14.868000Z",
  "file_hash": "385b2fa6f918c0575288ab1e37b4483317f364fa8ef258b48c588ea9ac5b2580",
  "private": false,
  "record": {
    "abstract": "We analyze the propagation of electromagnetic waves in media where the\ndielectric constants undergo rapid temporal periodic modulation. Both spatially\nhomogeneous and periodic media are studied. Fast periodic temporal modulation\nof the dielectric constant of a homogeneous medium leads to existence of\nphotonic band-gap like phenomena. In the presence of both spatial and tem-\nporal periodicity the electromagnetic spectrum is described in a\nfour-dimensional cube, defining an effective Brillouin zone. In the case of\nincommensurability between space and time periodicities, completely dispersed\npoint spectra exist.",
    "arxiv_id": "physics/0610140",
    "authors": [
      "B. S. Alexandrov",
      "K. O. Rasmussen",
      "A. T. Findikoglu",
      "A. R. Bishop",
      "I. Z. Kostadinov"
    ],
    "categories": [
      "physics.optics",
      "physics.class-ph"
    ],
    "title": "Classical Propagation of Light in Spatio-Temporal Periodic Media",
    "url": "https://arxiv.org/abs/physics/0610140"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a333b789-d760-4adc-8192-91a83b55d500",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}