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Updated: Jun 10, 2025

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Pair-OAM properties in scalar light beams.

Sebastian Martinez, Sushil Pokharel, Olga Korotkova

    Optics Letters
    |October 15, 2024
    PubMed
    Summary

    We discovered the geometric structure when separating orbital angular momentum (OAM) states from random light beams. New characterization quantities, the degree and ellipse of orbitalization, were introduced and demonstrated via numerical propagation.

    Area of Science:

    • Optics and Photonics
    • Quantum Information Science

    Background:

    • Orbital angular momentum (OAM) is a fundamental property of light.
    • Characterizing OAM states in random light beams is challenging.

    Purpose of the Study:

    • To reveal the geometric structure of OAM state segregation from random light.
    • To introduce novel quantities for characterizing OAM states.
    • To analyze the free-space propagation of these new quantities.

    Main Methods:

    • Analysis of OAM state segregation from a random light beam.
    • Introduction of the degree and ellipse of orbitalization.
    • Numerical simulations of free-space propagation.

    Main Results:

    • Identification of a specific geometric structure upon OAM state segregation.

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  • Definition and application of the degree and ellipse of orbitalization.
  • Demonstration of the propagation behavior of these quantities.

    • Conclusions:

    • The study provides new tools for characterizing OAM in complex light fields.
    • The introduced quantities offer insights into the geometric aspects of OAM segregation.
    • The findings are relevant for applications involving structured light and OAM manipulation.