{
  "abstract": "Spin of a donor bound electron in silicon has been shown to be a very coherent qubit system but lacks a coherent optical interface. There does, however, exist a donor bound exciton transition that can be excited optically but decays dominantly via an Auger recombination producing an electrical signal. This provides an opto-electrical pathway for spin readout. Scaling this readout to single-spin level will require interfacing the spins with silicon photonics for efficient guiding of photons, which in turn will require moving to silicon-on-insulator (SOI) substrates. Here we demonstrate first ensemble opto-electronic measurements of donor bound excitons in SOI material, including isotopically purified 28-Si device layers. The experiments show pronounced shifts in the resonance wavelengths and broadenings of the transition linewidths compared to the bulk experiments.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.15674",
  "author_total": 5,
  "authors": [
    {
      "name": "A. Kanniainen"
    },
    {
      "name": "A. S. Kumar"
    },
    {
      "name": "A. Sammak"
    },
    {
      "name": "G. Scappucci"
    },
    {
      "name": "J. T. Muhonen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/app96x1dsqe1g.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.15674",
  "fulltext_url": null,
  "id": "app96x1dsqe1g",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.15674",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum and electron transport phenomena"
    ]
  ],
  "openalex": "W7213321298",
  "pdf_url": "https://arxiv.org/pdf/2609.15674",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/app96x1dsqe1g.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:25Z",
      "native_id": "2609.15674",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.15674"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Opto-Electrical Detection of Donor Bound Excitons in Silicon-on-Insulator Substrate",
  "title_text": "Opto-Electrical Detection of Donor Bound Excitons in Silicon-on-Insulator Substrate",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:25Z",
  "url": "https://research.draconitic.com/paper/app96x1dsqe1g",
  "venue": "arXiv",
  "versions": []
}