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Related Experiment Video

Updated: Aug 25, 2025

Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

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Vortex beam as a positioning tool.

Agnieszka Popiołek-Masajada, Ewa Frączek, Wojciech Frączek

    Optics Express
    |October 14, 2022
    PubMed
    Summary
    This summary is machine-generated.

    Optical vortices offer improved remote positioning accuracy over traditional laser beams by reducing atmospheric turbulence effects. Averaging multiple vortex positions further enhances precision for stable, high-accuracy measurements.

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    Area of Science:

    • Optics and Photonics
    • Laser Physics
    • Atmospheric Optics

    Background:

    • Remote positioning relies on precise laser beam measurements.
    • Atmospheric turbulence significantly degrades positioning accuracy over large distances.
    • Standard Gaussian beams are susceptible to transversal displacements.

    Purpose of the Study:

    • To investigate the use of optical vortices for enhanced remote positioning.
    • To compare the precision of optical vortex localization with Gaussian beam methods.
    • To explore methods for further improving positioning accuracy using optical vortices.

    Main Methods:

    • Experimental validation of optical vortex stability at 100 meters.
    • Comparison of vortex point localization with centroid-based assessment of Gaussian beams.
    • Numerical simulations and experimental measurements of vortex constellation averaging.

    Main Results:

    • Optical vortices show lower transversal variations compared to Gaussian beams.
    • Higher precision in localizing vortex points was demonstrated.
    • Averaging positions of up to four secondary vortices improved accuracy.
    • Stable vortex constellations with higher topological charges yielded further improvements.

    Conclusions:

    • Optical vortices provide a more robust solution for remote positioning in turbulent atmospheres.
    • The proposed vortex-based method offers superior precision over conventional techniques.
    • Averaging secondary vortex positions presents a viable strategy for enhanced measurement stability and accuracy.