{
  "abstract": "All-optical tuning of van der Waals (vdW) heterostructures with coherent radiation offers a powerful strategy for manipulating interfacial electronic properties on femtosecond time scales. Using real-time time-dependent density functional theory, we predict a transient out-of-plane polarization in MoS2/WSe2 heterobilayers driven by intense ultrafast pulses. In the weak-field regime, the system preserves its intrinsic type-II band alignment, whereas at intermediate intensities, the field triggers a nonlinear enhancement of interlayer charge transfer. High-harmonic generation spectra undergo a crossover from the perturbative to the strong-field regime accompanied by the pronounced enhancement of a photoinduced interfacial dipole. At the highest intensities, interlayer polarization enhancement is sustained by massive field-driven spatial delocalization of electronic density into the vdW gap, promoted by localized charge saturation due to Pauli blocking. Lattice strain modifies the resonance conditions while preserving this strong-field polarization enhancement, establishing a microscopic mechanism for all-optical manipulation of interfacial dipoles at the ultrafast timescale.",
  "abstract_shown": true,
  "affiliations": [
    "Institut für Festkörpertheorie und Optik, Friedrich-Schiller-Universität Jena, 07743Jena, Germany.",
    "Institut für Festkörperphysik, Friedrich-Schiller-Universität Jena, 07743Jena, Germany.",
    "Abbe Center of Photonics, Friedrich-Schiller-Universität Jena, 07745Jena, Germany."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Muhammad Sufyan Ramzan",
      "orcid": "0000-0002-5017-8718"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Giancarlo Soavi",
      "orcid": "0000-0003-2434-2251"
    },
    {
      "affs": [
        0,
        2
      ],
      "name": "Caterina Cocchi",
      "orcid": "0000-0002-9243-9461"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/299qnw5m6tejj.bib",
  "cited_by": 0,
  "doi": "10.1021/acs.nanolett.6c02950",
  "fulltext_url": "https://europepmc.org/articles/PMC13693496",
  "id": "299qnw5m6tejj",
  "issns": [
    "1530-6984",
    "1530-6992"
  ],
  "landing_url": "https://europepmc.org/article/MED/42905076",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7204211630",
  "pdf_url": "https://europepmc.org/articles/PMC13693496?pdf=render",
  "pmcid": "PMC13693496",
  "pmid": "42905076",
  "published": "2026-10-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/299qnw5m6tejj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:57Z",
      "native_id": "MED:42905076",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42905076"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|2D Materials and Applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "All-Optical Control of Interfacial Polarization in MoS2/WSe2 Heterobilayers.",
  "title_text": "All-Optical Control of Interfacial Polarization in MoS2/WSe2 Heterobilayers.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:19:57Z",
  "url": "https://research.draconitic.com/paper/299qnw5m6tejj",
  "venue": "Nano letters",
  "versions": []
}