{
  "abstract": "Techniques to generate megabar (100 GPa) pressure are critical for the study of materials under extreme conditions. However, kJ-class lasers are typically needed to generate such extreme pressures. Here, we present a method to reach megabar pressure on a benchtop using only tens of mJ a few millijoules of laser pulse energy. The core of our method is the utilization of multiple laser rings of different diameters and time delays to additively excite a focusing shock wave. Using high-speed imaging and a streak camera, we measured the shock trajectory and inferred pressure, temperature and density using hydrocode simulation. Our shock compression efficiency, informed by hydrocode, has achieved 23 GPa/mJ. If scaled up, our method may enable high-energy-density experiments on a benchtop.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.20749",
  "author_total": 12,
  "authors": [
    {
      "name": "Yun Kai"
    },
    {
      "name": "Min Kim"
    },
    {
      "name": "Senpeng Lin"
    },
    {
      "name": "Zhen Sang"
    },
    {
      "name": "Jacob Gordon"
    },
    {
      "name": "Steven E. Kooi"
    },
    {
      "name": "Alexei Maznev"
    },
    {
      "name": "Thomas Pezeril"
    },
    {
      "name": "Cyril Williams"
    },
    {
      "name": "Tom Lockard"
    },
    {
      "name": "Damian Swift"
    },
    {
      "name": "Keith A. Nelson"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6tffsjx6b0h1c.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.20749",
  "fulltext_url": null,
  "id": "6tffsjx6b0h1c",
  "issns": [],
  "landing_url": "https://hal.science/hal-05805264v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.astr"
    ],
    [
      "hal",
      "2.phys.astr.im"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://hal.science/hal-05805264/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6tffsjx6b0h1c.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:59Z",
      "native_id": "hal-05805264",
      "source": "hal",
      "url": "https://hal.science/hal-05805264v1"
    },
    {
      "first_seen": "2026-10-30T12:29:50Z",
      "native_id": "2610.20749",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.20749"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "hal:2.phys.astr.im",
      "subfield": "instrumentation-methods"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Megabar Shocks on a Benchtop",
  "title_text": "Megabar Shocks on a Benchtop",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:50Z",
  "url": "https://research.draconitic.com/paper/6tffsjx6b0h1c",
  "venue": "HAL",
  "versions": []
}