{
  "abstract": "An optical vortex (OV) is coupled with the local intensity zero and is thus a field configuration suitable for \"hollow\" optical traps and optical tweezers. When an incident circular OV beam experiences diffraction at a rectilinear screen edge (SE), and the conditions of weak diffraction perturbation (the SE is far enough from the beam axis) are fulfilled, the main consequence is the OV-core displacement from its initial (axial) position. Based on the model of incident Laguerre-Gaussian (LG) beam, we investigate analytically and numerically the ways of controlling the OV-core position in the diffracted-field cross section by means of changing the SE position with respect to the incident-beam axis. The results show that regulating the SE position with ~1 mcm accuracy (which is available for existing mechanical tools), controllable OV-core motion with a sub-nanometer accuracy can be realized. Possible modifications of this motion depending on the incident beam topological charge, wavefront curvature, SE properties (semitransparent screen, phase-step screen) and the distance between the diffraction plane and the observation plane are analyzed. The conditions most favorable for the micro-object trapping and manipulation are specified and discussed.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Ukrainian Journal of Physical Optics (2026). V. 27, No 5. P. S1003-S1016",
  "arxiv": "2607.19630",
  "author_total": 5,
  "authors": [
    {
      "name": "O. V. Angelsky"
    },
    {
      "name": "A. Y. Bekshaev"
    },
    {
      "name": "C. Y. Zenkova"
    },
    {
      "name": "I. I. Mokhun"
    },
    {
      "name": "X. Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1zbn3tsze8pev.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.19630",
  "fulltext_url": null,
  "id": "1zbn3tsze8pev",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.19630",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2607.19630",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1zbn3tsze8pev.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2607.19630",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.19630"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Controllable localization and manipulation of optical hollow traps by means of optical-vortex diffraction",
  "title_text": "Controllable localization and manipulation of optical hollow traps by means of optical-vortex diffraction",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/1zbn3tsze8pev",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.3116/16091833/ukr.j.phys.opt.2026.s1003",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}