{
  "abstract": "Scalable quantum-photonic technologies require spatially separated emitters to emit at the same wavelength, yet epitaxially grown quantum dots naturally exhibit emitter-to-emitter variations in their emission energies. Here, we demonstrate a contact-free post-growth tuning approach for InAs quantum dots embedded in InP nanowires using the photo-induced transformation of an amorphous Sb2S3 shell. This photoinduced effect leads to a progressive relaxation of the strain imposed on the InP core, enabling controlled spectral tuning of the quantum-dot emission. The effect is observed both at room temperature and under cryogenic conditions for quantum dots emitting in the O-band of the telecommunications spectrum. Strain-induced redshifts of approximately 7 meV at room temperature and 28 meV under cryogenic conditions are observed, respectively. The use of an amorphous chalcogenide shell therefore provides a route to achieve local wavelength tuning at the single quantum-dot-in-a-nanowire level after growth. This approach could enable spectrally matched emitters for scalable quantum-photonic architectures.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.09870",
  "author_total": 7,
  "authors": [
    {
      "name": "Evangelos Sotiropoulos"
    },
    {
      "name": "Philippe Regreny"
    },
    {
      "name": "Matthieu Bugnet"
    },
    {
      "name": "Nicholas P. Blanchard"
    },
    {
      "name": "Sébastien Cueff"
    },
    {
      "name": "José Penuelas"
    },
    {
      "name": "Nicolas Chauvin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1j54gfnxfd4bh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.09870",
  "fulltext_url": null,
  "id": "1j54gfnxfd4bh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.09870",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "openalex",
      "3107|Semiconductor Quantum Structures and Devices"
    ]
  ],
  "openalex": "W7212156406",
  "pdf_url": "https://arxiv.org/pdf/2609.09870",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1j54gfnxfd4bh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:12Z",
      "native_id": "2609.09870",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.09870"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Photo-induced Wavelength-tuning of Telecom-band Quantum Dot Nanowires Embedded in a Phase Change Material",
  "title_text": "Photo-induced Wavelength-tuning of Telecom-band Quantum Dot Nanowires Embedded in a Phase Change Material",
  "type": "preprint",
  "updated_at": "2026-10-30T12:20:12Z",
  "url": "https://research.draconitic.com/paper/1j54gfnxfd4bh",
  "venue": "arXiv",
  "versions": []
}