{
  "abstract": "Miniaturised multidimensional light detection, encompassing full-Stokes polarimetry and spectroscopy in ultracompact footprints, is attracting growing interest for its potential to capture a comprehensive set of light properties in portable platforms. Although significant progress has been made in miniaturised schemes for independent polarisation and spectral detection, achieving simultaneous high-dimensional light detection remains an outstanding challenge that limits their development toward full integration. We overcome this limitation by breaking the rotational and inversion symmetries in a symmetry-engineered van der Waals heterojunction to realise an ultracompact multidimensional photodetector. The dual symmetry breaking gives rise to non-trivial quantum geometric and topological features, enabling simultaneous broadband polarisation- and spectrum-resolved light detection, in contrast to previous van der Waals material-based devices, which could detect only one of these modalities. Our device, with an effective area of only 10 micron x 10 micron, reconstructs full-Stokes polarisation with overall root-mean-square errors below 0.05 and resolves spectral peaks separated by 0.4 nm, capabilities not previously achieved in single-pixel detectors. By unifying high-fidelity polarimetry and sub-nanometre spectroscopy in a single electrically tunable junction, our work eliminates the need for cascaded detection architectures and establishes a foundation for multidimensional detector arrays for integrated photonics, quantum information processing, and precision imaging.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.02161",
  "author_total": 14,
  "authors": [
    {
      "name": "Yucai Lin"
    },
    {
      "name": "Yaoqiang Zhou"
    },
    {
      "name": "Ruijuan Tian"
    },
    {
      "name": "Faisal Ahmed"
    },
    {
      "name": "Andreas C. Liapis"
    },
    {
      "name": "Youqiang Huang"
    },
    {
      "name": "Yawei Dai"
    },
    {
      "name": "Yuwei Chen"
    },
    {
      "name": "Weiwei Cai"
    },
    {
      "name": "Zongyin Yang"
    },
    {
      "name": "Weida Hu"
    },
    {
      "name": "Tawfique Hasan"
    },
    {
      "name": "Luojun Du"
    },
    {
      "name": "Zhipei Sun"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/77d47xfnk2s8s.bib",
  "cited_by": 1,
  "doi": "10.48550/arxiv.2609.02161",
  "fulltext_url": null,
  "id": "77d47xfnk2s8s",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.02161",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "arxiv",
      "physics.app-ph"
    ],
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7207804796",
  "pdf_url": "https://arxiv.org/pdf/2609.02161",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/77d47xfnk2s8s.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:16Z",
      "native_id": "2609.02161",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.02161"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.app-ph",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Multidimensional Light Detection with Symmetry-engineered Heterojunctions",
  "title_text": "Multidimensional Light Detection with Symmetry-engineered Heterojunctions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:16Z",
  "url": "https://research.draconitic.com/paper/77d47xfnk2s8s",
  "venue": "arXiv",
  "versions": []
}