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    We introduce novel electromagnetic sources with unique multi-sinc Schell-model correlations. These sources offer controllable multi-ring beam patterns for advanced laser material processing applications.

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    Area of Science:

    • Optics and Photonics
    • Electromagnetism
    • Laser Physics

    Background:

    • The precise control of light beam characteristics is crucial for advanced applications.
    • Existing electromagnetic sources have limitations in generating complex intensity patterns.

    Purpose of the Study:

    • To introduce a novel class of electromagnetic sources with multi-sinc-Schell-model correlation functions.
    • To establish criteria for the realizability of these sources.
    • To investigate the propagation characteristics and beam-shaping capabilities of these novel sources.

    Main Methods:

    • Utilizing weighted superposition methodology.
    • Performing numerical propagation simulations.
    • Analyzing statistical properties and intensity distributions.

    Main Results:

    • Demonstrated comprehensive realizability criteria for the source parameters.
    • Revealed unique self-adaptive intensity distribution characteristics during propagation.
    • Showcased the ability to generate customizable single or dual-layer annular structures with tunable ring multiplicity in the far-field.
    • Confirmed controllable generation of multi-ring intensity patterns.

    Conclusions:

    • The proposed electromagnetic sources offer unprecedented control over beam profiles.
    • The tunable multi-ring intensity patterns are ideal for precision laser material processing.
    • These sources represent a significant advancement in beam-shaping technology for laser applications.