{
  "abstract": "We present an experimental study on electron acceleration and electromagnetic pulse (EMP) generation on the Shanghai Superintense Ultrafast Laser Facility. Using the 1.8-PW femtosecond laser pulse with a peak intensity of 8.0 × 1021 W/cm2 irradiating near-critical-density foam targets, enhanced electron acceleration is observed compared with the flat foil case, producing a high-quality electron beam with a large charge of 16.2 nC, a high temperature of 32.5 MeV, and a conversion efficiency from laser to electrons of 5.6% for energies more than 20 MeV. Simultaneously, an intense EMP with energy reaching up to 1.7 J is obtained for the foam target, which is seven times that of the flat foil case. The EMP spectra exhibit multiple peaks at fixed frequencies, where the EMP amplitude is directly proportional to the electron temperature for the electromagnetic radiation induced by electron reflux in the target holder and escape of hot electrons from the target, while it deviates from the proportional relationship for the eigenfrequency radiation of the vacuum chamber. This work demonstrates a novel scheme to simultaneously generate large-charge relativistic electron beams and intense EMPs, providing a multiphysics field condition for potential applications such as material property studies and device hardening.",
  "abstract_shown": true,
  "affiliations": [
    "1State Key Laboratory of Ultra-Intense Laser Science and Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (CAS), Shanghai 201800, China",
    "1State Key Laboratory of Ultra-Intense Laser Science and Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (CAS), Shanghai 201800, China2CAS Center for Excellence in Ultra-Intense Laser Science, Shanghai 201800, China",
    "1State Key Laboratory of Ultra-Intense Laser Science and Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (CAS), Shanghai 201800, China3Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100190, China",
    "1State Key Laboratory of Ultra-Intense Laser Science and Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (CAS), Shanghai 201800, China4Department of Physics, Shanghai Normal University, Shanghai 200234, China",
    "1State Key Laboratory of Ultra-Intense Laser Science and Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (CAS), Shanghai 201800, China2CAS Center for Excellence in Ultra-Intense Laser Science, Shanghai 201800, China5ShanghaiTech University, Shanghai 201210, China"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 13,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Shuai Xu",
      "orcid": "0009-0006-3120-0728"
    },
    {
      "affs": [
        1
      ],
      "name": "Hui Zhang",
      "orcid": "0000-0002-2992-0973"
    },
    {
      "affs": [
        0
      ],
      "name": "Chengyu Qin"
    },
    {
      "affs": [
        0
      ],
      "name": "Bowen Zhang"
    },
    {
      "affs": [
        0
      ],
      "name": "Dirui Xu",
      "orcid": "0000-0002-7739-4162"
    },
    {
      "affs": [
        2
      ],
      "name": "Yingzi Dai"
    },
    {
      "affs": [
        0
      ],
      "name": "Yunwei Cui"
    },
    {
      "affs": [
        0
      ],
      "name": "Ke Quan"
    },
    {
      "affs": [
        0
      ],
      "name": "Lianghong Yu"
    },
    {
      "affs": [
        1
      ],
      "name": "Xiaoyan Liang"
    },
    {
      "affs": [
        3
      ],
      "name": "Baifei Shen",
      "orcid": "0000-0003-1021-6991"
    },
    {
      "affs": [
        1
      ],
      "name": "Liangliang Ji",
      "orcid": "0000-0002-7107-0626"
    },
    {
      "affs": [
        4
      ],
      "name": "Ruxin Li"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c5853b3yqeyfp.bib",
  "cited_by": 0,
  "doi": "10.1063/5.0348878",
  "fulltext_url": "https://pubs.aip.org/aip/mre/article-pdf/doi/10.1063/5.0348878/21194323/017201_1_5.0348878.pdf",
  "id": "c5853b3yqeyfp",
  "issns": [
    "2468-2047",
    "2468-080X"
  ],
  "landing_url": "https://doi.org/10.1063/5.0348878",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QC770-798"
    ]
  ],
  "openalex": null,
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-06",
  "publisher": "AIP Publishing LLC",
  "ris": "https://research.draconitic.com/paper/c5853b3yqeyfp.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T14:21:10Z",
      "native_id": "2ea3a081a32c489b8f4b49b7a5671d87",
      "source": "doaj",
      "url": "https://doi.org/10.1063/5.0348878"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "lcc:QC770-798",
      "subfield": "nuclear"
    }
  ],
  "title": "Multi-PW laser-driven large-charge electron beam and intense electromagnetic pulse utilizing near-critical-density foams",
  "title_text": "Multi-PW laser-driven large-charge electron beam and intense electromagnetic pulse utilizing near-critical-density foams",
  "type": "peer-reviewed",
  "updated_at": "2026-11-06T14:21:10Z",
  "url": "https://research.draconitic.com/paper/c5853b3yqeyfp",
  "venue": "Matter and Radiation at Extremes",
  "versions": []
}