{
  "annotation_id": "211a4fa6-e7e3-4be0-bb37-185de1da5bfc",
  "date_created": "2026-03-02T18:00:32.485000Z",
  "date_modified": "2026-03-02T18:00:32.485000Z",
  "file_hash": "20a96cd937284bd631e2ae4e0314d88d4305b3585b10159a2f78892333982835",
  "private": false,
  "record": {
    "abstract": "The hard x-ray emission in the energy range of 30-300 keV from copper plasmas\nproduced by 100 fs, 806 nm laser pulses at intensities in the range of\n10$^{15}-10^{16}$ W cm$^{-2}$ is investigated. We demonstrate that surface\nroughness of the targets overrides the role of polarization state in the\ncoupling of light to the plasma. We further show that surface roughness has a\nsignificant role in enhancing the x-ray emission in the above mentioned energy\nrange.",
    "arxiv_id": "physics/0101019",
    "authors": [
      "P. P. Rajeev",
      "S. Banerjee",
      "A. S. Sandhu",
      "L. C. Tribedi",
      "G. R. Kumar"
    ],
    "categories": [
      "physics.plasm-ph",
      "physics.optics"
    ],
    "doi": "10.1103/PhysRevA.65.052903",
    "title": "Role of surface roughness in hard x-ray emission from femtosecond laser   produced copper plasmas",
    "url": "https://arxiv.org/abs/physics/0101019"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ef07a8b3-b067-4c53-8d82-ac52ec2f14f9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}