{
  "abstract": "Rydberg excitons in Cu$_2$O provide a solid-state setting for creating giant optical nonlinearities. Here, we use second-harmonic generation (SHG) to study Rydberg excitons in a doubly resonant optical microcavity designed to enhance both the pump and second-harmonic fields. We observe even-parity exciton states in an optical cavity and extend cavity-based measurements of Rydberg excitons up to $n=10$. The SHG intensity depends strongly on pump cavity detuning, showing the dominant role of the microcavity is the enhancement of the intra-cavity pump field. Analysis reveals an additional enhancement from the resonant second-harmonic cavity giving an overall SHG enhancement factor of $21 \\pm 2$ inside the microcavity. These results establish cavity-enhanced SHG spectroscopy as a valuable tool for studying Rydberg excitons in microcavities and provide a pathway towards exploiting optical nonlinearities in Rydberg exciton polariton systems.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.09705",
  "author_total": 9,
  "authors": [
    {
      "name": "Horatio Q. X Wong"
    },
    {
      "name": "Krzysztof Sawicki"
    },
    {
      "name": "Madeleine Fisher"
    },
    {
      "name": "Stephen A. Lynch"
    },
    {
      "name": "Wolfgang Langbein"
    },
    {
      "name": "Sai Kiran Rajendran"
    },
    {
      "name": "Hamid Ohadi"
    },
    {
      "name": "Matthew P. A. Jones"
    },
    {
      "name": "Liam A. P. Gallagher"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/f7r20hmexz69r.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.09705",
  "fulltext_url": null,
  "id": "f7r20hmexz69r",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.09705",
  "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"
    ],
    [
      "arxiv",
      "physics.optics"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.09705",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/f7r20hmexz69r.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T06:21:04Z",
      "native_id": "2611.09705",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.09705"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Cavity-enhanced second harmonic generation from Rydberg excitons in Cu$_2$O",
  "title_text": "Cavity-enhanced second harmonic generation from Rydberg excitons in Cu_2O",
  "type": "preprint",
  "updated_at": "2026-11-10T06:21:04Z",
  "url": "https://research.draconitic.com/paper/f7r20hmexz69r",
  "venue": "arXiv",
  "versions": []
}