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    A novel method generates a vortex array within partially coherent beams. This vortex array, embedded in the complex coherence function, is confirmed through experimental demonstration and analysis.

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    Area of Science:

    • Optics and Photonics
    • Quantum Optics

    Background:

    • Partially coherent beams are crucial in optical systems.
    • Generating structured light, like vortex arrays, enhances beam functionalities.

    Purpose of the Study:

    • To propose and experimentally demonstrate a method for generating a vortex array in a partially coherent beam.
    • To analyze the complex coherence function for vortex array confirmation.

    Main Methods:

    • Interference of three independent coherence functions with specific phase profiles to create the vortex array.
    • Utilizing a reference coherence function and Fourier fringe analysis on intensity cross-covariance for phase structure retrieval.

    Main Results:

    • Successful generation of a vortex array embedded in a partially coherent beam.
    • Experimental confirmation of the vortex array's existence via amplitude and phase distributions of the complex coherence function.

    Conclusions:

    • The proposed method effectively generates and confirms vortex arrays in partially coherent beams.
    • This technique offers a new way to structure light in partially coherent fields.