{
  "abstract": "Metalens arrays hold great promise for compact light-field imaging systems owing to their compactness and wavefront shaping capabilities. However, their fixed focal lengths fundamentally limit depth-of-field modulation and axial scanning, restricting their adaptability to diverse light-field imaging scenarios. Here, we demonstrate adaptive light-field imaging using a varifocal Alvarez metalens array. The array is composed of two closely bonded metasurfaces, each patterned with 24 × 20 cubic-phase sub-regions. Through relative lateral displacement, the Alvarez metalens array achieves continuous focal length tuning from 3.33 mm to 4.50 mm. Integrated into a plenoptic imaging system, the proposed metalens array enables dynamic focusing and an expanded depth range. We further introduce a MultiLensFusion algorithm that combines these multi-focus captures into high-resolution, all-in-focus renderings. This work offers a compact and versatile platform for next-generation light-field imaging systems with dynamically tunable optical response.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Electrical Engineering and State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, Hong Kong SAR, China",
    "School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, China",
    "State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China",
    "Department of Electrical Engineering and State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, Hong Kong SAR, China. junxiaozhou@nju.edu.cn",
    "School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, China. zhishgao@njust.edu.cn",
    "Department of Electrical Engineering and State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, Hong Kong SAR, China. dptsai@cityu.edu.hk",
    "Department of Physics and State Key Laboratory of Optical Quantum Materials, City University of Hong Kong, Kowloon, Hong Kong SAR, China. dptsai@cityu.edu.hk",
    "Shenzhen Research Institute, City University of Hong Kong, Shenzhen, China. dptsai@cityu.edu.hk"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Xiaoyu Che",
      "orcid": "0000-0002-9431-9199"
    },
    {
      "affs": [
        0
      ],
      "name": "Xiaoyuan Liu",
      "orcid": "0000-0001-5253-9313"
    },
    {
      "affs": [
        2
      ],
      "name": "Xin Zhang"
    },
    {
      "affs": [
        2
      ],
      "name": "Yuhao Lei",
      "orcid": "0000-0002-7755-6336"
    },
    {
      "affs": [
        1
      ],
      "name": "Yefeng Yu",
      "orcid": "0000-0002-4624-310X"
    },
    {
      "affs": [
        2
      ],
      "name": "Lei Wang",
      "orcid": "0000-0001-7977-5543"
    },
    {
      "affs": [
        3
      ],
      "name": "Junxiao Zhou",
      "orcid": "0000-0001-6168-8580"
    },
    {
      "affs": [
        4
      ],
      "name": "Zhishan Gao",
      "orcid": "0000-0002-9712-4696"
    },
    {
      "affs": [
        5,
        6,
        7
      ],
      "name": "Din Ping Tsai",
      "orcid": "0000-0002-0883-9906"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/erfr1jzxewdf0.bib",
  "cited_by": 7,
  "doi": "10.1038/s41467-026-74606-8",
  "fulltext_url": null,
  "id": "erfr1jzxewdf0",
  "issns": [
    "2041-1723"
  ],
  "landing_url": "https://doi.org/10.1038/s41467-026-74606-8",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2504|Metamaterials and Metasurfaces Applications"
    ]
  ],
  "openalex": "W7165612576",
  "pdf_url": "https://www.nature.com/articles/s41467-026-74606-8_reference.pdf",
  "pmcid": "PMC13442863",
  "pmid": "42337270",
  "published": "2026-06-23",
  "publisher": "Nature Portfolio",
  "ris": "https://research.draconitic.com/paper/erfr1jzxewdf0.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:27:00Z",
      "native_id": "W7165612576",
      "source": "openalex",
      "url": "https://doi.org/10.1038/s41467-026-74606-8"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2504|Metamaterials and Metasurfaces Applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Varifocal Alvarez metalens array for adaptive light-field imaging",
  "title_text": "Varifocal Alvarez metalens array for adaptive light-field imaging",
  "type": "peer-reviewed",
  "updated_at": "2026-11-06T13:20:44Z",
  "url": "https://research.draconitic.com/paper/erfr1jzxewdf0",
  "venue": "Nature Communications",
  "versions": []
}