{
  "abstract": "The fabrication of Diffractive Optical Elements (DOEs) involves the analog patterning of material surfaces on the scale of light wavelength. This typically requires multi-step lithographic processes. Differently from the photoresists of standard lithography, thin films of amorphous azobenzene-containing polymers (azopolymers) can directly produce a structured surface using a single irradiation step with structured light. The resulting surface reliefs can be used directly as planar phase-modulating DOEs without the need for any post-exposure process. Additionally, the surface geometry and its optical functionality can be reconfigured at will. Here, we demonstrate reprogrammable and ready-to-use azopolymer diffractive gratings, lenses, and holographic projectors, produced by grayscale digital holographic patterns. By exploiting the all-optical scheme based of computer-generated holography, the diffraction behavior of the DOEs is optimized during the developing of structured surfaces. Full all-optical reconfigurability of the fabricated devices is also achieved. Our approach provides a versatile, efficient, and all-optical reversible fabrication framework for DOEs, making it a promising option to overcome the demanding, cumbersome, and irreversible fabrication processes typically involved in the realization of planar diffractive optical devices.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "name": "Francesco Reda"
    },
    {
      "name": "Marcella Salvatore"
    },
    {
      "name": "I Komang Januariyasa"
    },
    {
      "name": "Fabio Borbone"
    },
    {
      "name": "Stefano Luigi Oscurato"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/79bgdzp4x6req.bib",
  "cited_by": 0,
  "doi": "10.1051/epjconf/202430911007",
  "fulltext_url": null,
  "id": "79bgdzp4x6req",
  "issns": [
    "2100-014X",
    "2101-6275"
  ],
  "landing_url": "https://hal.science/hal-05789711v1",
  "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": [
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.phys"
    ],
    [
      "hal",
      "2.phys.phys.phys-optics"
    ],
    [
      "openalex",
      "2214|Advanced Optical Imaging Technologies"
    ]
  ],
  "openalex": "W4403954465",
  "pdf_url": "https://www.epj-conferences.org/articles/epjconf/pdf/2024/19/epjconf_eosam2024_11007.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": "EDP Sciences",
  "ris": "https://research.draconitic.com/paper/79bgdzp4x6req.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:52Z",
      "native_id": "hal-05789711",
      "source": "hal",
      "url": "https://hal.science/hal-05789711v1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "hal:2.phys.phys.phys-optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Holographic fabrication of reconfigurable diffractive elements",
  "title_text": "Holographic fabrication of reconfigurable diffractive elements",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:52Z",
  "url": "https://research.draconitic.com/paper/79bgdzp4x6req",
  "venue": "EPJ Web of Conferences",
  "versions": []
}