{
  "abstract": "The miniaturization of polarization-controlling optical components is one of the central pursuits in nanophotonics. While traditional anisotropic materials require large propagation lengths to achieve the desired phase shifts, metasurfaces mitigate this size constraint but often introduce narrow operational bandwidths and high fabrication complexities. To bridge this gap, we introduce MoOCl2 as a promising material for ultracompact and broadband phase retardation. Building on its giant optical anisotropy, we experimentally demonstrate MoOCl2 quarter-wave plates with thicknesses down to 65 nm. These flakes exhibit achromatic quarter-wave retardation across broad visible and near-infrared (510-900 nm) spectral windows, surpassing the fundamental thickness and bandwidth limitations of both conventional optical materials and artificial nanostructures. Moreover, MoOCl2 wave plates demonstrate a measured retardance tolerance reaching λ/4500 at their experimentally determined quarter-wave wavelengths. As a result, this study establishes MoOCl2 as a building block for ultracompact polarization optics.",
  "abstract_shown": true,
  "affiliations": [
    "Emerging Technologies Research Center, XPANCEO, Internet City, Emmay Tower, Dubai00000, United Arab Emirates.",
    "C.H.O.S.E. (Center for Hybrid and Organic Solar Energy), Electronic Engineering Department, University of Rome Tor Vergata, Via del Politecnico 1, 00118Rome, Italy.",
    "Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 16628Prague 6, Czech Republic.",
    "National Graphene Institute (NGI), University of Manchester, ManchesterM13 9PL, U.K.",
    "Department of Materials Science and Engineering, National University of Singapore, Singapore03-09 EA, Singapore.",
    "Institute for Functional Intelligent Materials, National University of Singapore, Singapore117544, Singapore."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 13,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Georgy Ermolaev",
      "orcid": "0000-0002-0895-818X"
    },
    {
      "affs": [
        0
      ],
      "name": "Adilet Toksumakov",
      "orcid": "0000-0001-5016-1054"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Valeria Maslova"
    },
    {
      "affs": [
        0
      ],
      "name": "Aleksandr Slavich",
      "orcid": "0000-0001-7676-9527"
    },
    {
      "affs": [
        0
      ],
      "name": "Anton Minnekhanov",
      "orcid": "0000-0002-7685-8463"
    },
    {
      "affs": [
        0
      ],
      "name": "Gleb Tselikov",
      "orcid": "0009-0002-0762-015X"
    },
    {
      "affs": [
        0
      ],
      "name": "Nikolay Pak"
    },
    {
      "affs": [
        0
      ],
      "name": "Andrey Vyshnevyy"
    },
    {
      "affs": [
        2
      ],
      "name": "Aljoscha Söll",
      "orcid": "0000-0003-4797-0015"
    },
    {
      "affs": [
        2
      ],
      "name": "Zdenek Sofer",
      "orcid": "0000-0002-1391-4448"
    },
    {
      "affs": [
        0
      ],
      "name": "Aleksey Arsenin",
      "orcid": "0000-0002-7506-4389"
    },
    {
      "affs": [
        3,
        4,
        5
      ],
      "name": "Kostya S Novoselov"
    },
    {
      "affs": [
        0
      ],
      "name": "Valentyn Volkov",
      "orcid": "0000-0001-8994-7812"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0jvnqedssevgd.bib",
  "cited_by": 1,
  "doi": "10.1021/acsnano.6c10350",
  "fulltext_url": "https://europepmc.org/articles/PMC13671161",
  "id": "0jvnqedssevgd",
  "issns": [
    "1936-0851",
    "1936-086X"
  ],
  "landing_url": "https://europepmc.org/article/MED/42917195",
  "language": "eng",
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2504|Metamaterials and Metasurfaces Applications"
    ]
  ],
  "openalex": "W7152074599",
  "pdf_url": "https://europepmc.org/articles/PMC13671161?pdf=render",
  "pmcid": "PMC13671161",
  "pmid": "42917195",
  "published": "2026-10-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0jvnqedssevgd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:36Z",
      "native_id": "MED:42917195",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42917195"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2504|Metamaterials and Metasurfaces Applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Deep-Subwavelength and Broadband Quarter-Wave Retardation in Ultrathin Hyperbolic MoOCl2.",
  "title_text": "Deep-Subwavelength and Broadband Quarter-Wave Retardation in Ultrathin Hyperbolic MoOCl2.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:20:36Z",
  "url": "https://research.draconitic.com/paper/0jvnqedssevgd",
  "venue": "ACS nano",
  "versions": []
}