{
  "abstract": "In this work, we experimentally investigate the astigmatism induced by a birefringent crystal inside an optical cavity and demonstrate a geometric compensation strategy for structured modes carrying orbital angular momentum (OAM). We show that the astigmatism observed in the semimonolithic configuration can be fully compensated by introducing a third mirror to fold the cavity, thereby exploiting the geometric astigmatism arising from oblique incidence on the curved mirror. By performing a study of the resonator geometry, both theoretical and experimental results confirm that this approach enables the preservation of OAM between the pump beam and the converted signal and idler modes, providing an effective design strategy for birefringent optical cavities.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.08575",
  "author_total": 5,
  "authors": [
    {
      "name": "J. C. de Carvalho Jr."
    },
    {
      "name": "R. F. Barros"
    },
    {
      "name": "A. Z. Khoury"
    },
    {
      "name": "C. E. R. Souza"
    },
    {
      "name": "G. B. Alves"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5w471e41e9367.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.08575",
  "fulltext_url": null,
  "id": "5w471e41e9367",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.08575",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.08575",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5w471e41e9367.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T06:21:04Z",
      "native_id": "2611.08575",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.08575"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Tailoring resonator geometry for astigmatism compensation with structured light in birefringent optical cavities",
  "title_text": "Tailoring resonator geometry for astigmatism compensation with structured light in birefringent optical cavities",
  "type": "preprint",
  "updated_at": "2026-11-10T06:21:04Z",
  "url": "https://research.draconitic.com/paper/5w471e41e9367",
  "venue": "arXiv",
  "versions": []
}