{
  "abstract": "We report on the development of a versatile attosecond beamline for ultrafast spectroscopy of atoms and molecules, as well as for the metrology of infrared laser pulses. Using a few-cycle pulse (approximately 5 fs) for driving the high-order harmonic generation process, we show that the modulation of the harmonic flux in the cut-off spectral region, induced by a weak perturbing field, enables complete electric-field characterization of the perturbing pulse. Phase-sensitive detection with a lock-in amplifier further reveals polarization-dependent effects, observed as modulations at twice the fundamental optical frequency, emphasizing the sub-laser-cycle electronic control inherent to the measurement technique. In addition, the beamline supports the implementation of two-color (extreme ultraviolet and infrared) phase-sensitive experiments using approximately 30 fs pulses and a velocity map imaging spectrometer (VMI). This configuration will enable the study of photoemission time delays in atomic and molecular systems. Together, these results establish the beamline as a robust and adaptable platform for probing attosecond dynamics across diverse experimental approaches.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.10970",
  "author_total": 11,
  "authors": [
    {
      "name": "Ronak Narendra Shah"
    },
    {
      "name": "Jahanzeb Muhammad"
    },
    {
      "name": "Ianina Kosse"
    },
    {
      "name": "Marvin Schmoll"
    },
    {
      "name": "Samuel Bengtsson"
    },
    {
      "name": "Riccardo Mori"
    },
    {
      "name": "Dominik Hoff"
    },
    {
      "name": "Gerhard G. Paulus"
    },
    {
      "name": "Fabio Frassetto"
    },
    {
      "name": "Luca Poletto"
    },
    {
      "name": "Giuseppe Sansone"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d8k4m1rh3309b.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.10970",
  "fulltext_url": null,
  "id": "d8k4m1rh3309b",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.10970",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.atom-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.10970",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-07",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/d8k4m1rh3309b.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T06:21:23Z",
      "native_id": "2611.10970",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.10970"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.atom-ph",
      "subfield": "amo"
    }
  ],
  "title": "A versatile beamline for attosecond photoelectron and photon spectroscopy",
  "title_text": "A versatile beamline for attosecond photoelectron and photon spectroscopy",
  "type": "preprint",
  "updated_at": "2026-11-10T06:21:23Z",
  "url": "https://research.draconitic.com/paper/d8k4m1rh3309b",
  "venue": "arXiv",
  "versions": []
}