{
  "abstract": "Semimetal elemental antimony (Sb) nanostructures show great potential for applications where nanophotonic properties play a key role, such as phase-change optical memories, non-linear optical elements, photothermal therapy agents, photodetectors and photocatalysts. However, designing advanced Sb-based photonic devices critically requires an accurate and reliable knowledge of the optical response of bulk and nanoscale Sb. Herein, we report for the first time a fully consistent and accurately measured dielectric function for Sb nanoscale films in a wide spectral range from the ultraviolet to the far infrared (4 - 0.04 eV, i.e. ~ 0.3 - 30 $μ$m), surpassing previous reports that explored a limited spectral range. It is found that the Sb spectral response is driven exclusively by giant interband transitions in the visible up to mid infrared (4 - 0.4 eV, i.e. ~ 0.3 - 3 $μ$m), and that their contribution dominates over that of free carriers down to 0.12 eV (i.e. ~ 10 $μ$m). Such spectral response enables Sb nanostructures to display spectrally selective and tunable nanophotonic resonances. First, we showcase interband plasmonic resonances in the visible-to-near infrared for Sb nanogratings. Second, we report giant refractive index dielectric resonances in the mid infrared for nanostructured Sb/dielectric/metal resonant cavities. These findings open a pathway to optimized planar Sb nanoscale designs enabling a tailored light-matter interaction, which will be useful for integrated data, telecom, medical, optoelectronic and energy conversion devices operating in a broad spectral range.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.11501",
  "author_total": 8,
  "authors": [
    {
      "name": "Fernando Chacón-Sánchez"
    },
    {
      "name": "Jacek Wojcik"
    },
    {
      "name": "Marina García Pardo"
    },
    {
      "name": "Fátima Cabello"
    },
    {
      "name": "Peter Mascher"
    },
    {
      "name": "Fernando Agulló-Rueda"
    },
    {
      "name": "Rosalía Serna"
    },
    {
      "name": "Johann Toudert"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d6pbc1dvwvrd9.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.11501",
  "fulltext_url": null,
  "id": "d6pbc1dvwvrd9",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.11501",
  "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.mtrl-sci"
    ],
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "2204|Plasmonic and Surface Plasmon Research"
    ]
  ],
  "openalex": "W7212314714",
  "pdf_url": "https://arxiv.org/pdf/2609.11501",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/d6pbc1dvwvrd9.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:26Z",
      "native_id": "2609.11501",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.11501"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Antimony for broadband nanophotonics across the ultraviolet, visible and infrared",
  "title_text": "Antimony for broadband nanophotonics across the ultraviolet, visible and infrared",
  "type": "preprint",
  "updated_at": "2026-10-30T12:20:26Z",
  "url": "https://research.draconitic.com/paper/d6pbc1dvwvrd9",
  "venue": "arXiv",
  "versions": []
}