{
  "abstract": "Compact optical systems with continuously tunable focal lengths are highly desirable for machine vision, biomedical imaging, and miniaturized cameras. Rotational Moiré lenses offer a planar approach to focal-length tuning, but metasurface-based implementations typically require complex nanofabrication processes that complicate large-area production. Here, we present a cyclic, mask-free fabrication strategy that combines layer-by-layer self-assembly of two-dimensional graphene oxide (GO) and poly(diallyldimethylammonium chloride) (PDDA) with femtosecond laser nanoprinting. Repeated GO-PDDA assembly and spatially selective ablation enable atomic-scale thickness control and the construction of precise multilevel phase profiles, reducing phase-quantization errors and improving focusing efficiency. The measured focusing efficiencies of individual GO lenses increase from 22.4% for two phase levels to 54.8% for six levels. Using this six-level modulation strategy, the fabricated GO Moiré lens achieves continuous focal-length tuning from approximately 10 to 90 mm. Full-colour imaging with magnifications ranging from 1X to 9X is experimentally demonstrated. These results establish a cyclic, mask-free fabrication strategy for efficient multilevel GO flat optics and demonstrate its potential for compact, reconfigurable imaging.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.36373",
  "author_total": 5,
  "authors": [
    {
      "name": "Guiyuan Cao"
    },
    {
      "name": "Xinyuan Du"
    },
    {
      "name": "Han Lin"
    },
    {
      "name": "Baohua Jia"
    },
    {
      "name": "Shibiao Wei"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/58342nj2bhw3p.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.36373",
  "fulltext_url": null,
  "id": "58342nj2bhw3p",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.36373",
  "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",
      "physics.optics"
    ],
    [
      "openalex",
      "2504|Metamaterials and Metasurfaces Applications"
    ]
  ],
  "openalex": "W7224118437",
  "pdf_url": "https://arxiv.org/pdf/2610.36373",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/58342nj2bhw3p.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2610.36373",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.36373"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "High-Efficiency Graphene Oxide Moiré Lenses Enabled by Cyclic Self-Assembly and Laser Nanoprinting",
  "title_text": "High-Efficiency Graphene Oxide Moiré Lenses Enabled by Cyclic Self-Assembly and Laser Nanoprinting",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/58342nj2bhw3p",
  "venue": "arXiv",
  "versions": []
}