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Controllable Laguerre Gaussian wave packets along predesigned trajectories.

Xi Peng, Jingyun Ouyang, Danlin Xu

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    PubMed
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    We developed controllable Laguerre Gaussian wave packets (LGWPs) that self-accelerate and self-focus along parabolic paths. These structured light fields offer stable propagation and advance research in self-bending and autofocusing light.

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    Area of Science:

    • Quantum Optics
    • Structured Light Fields
    • Wave Packet Dynamics

    Background:

    • Laguerre Gaussian wave packets (LGWPs) are fundamental in optics.
    • Controlling light propagation, especially self-acceleration and self-focusing, remains a key research area.

    Purpose of the Study:

    • To introduce and model controllable LGWPs with predesigned parabolic trajectories.
    • To demonstrate stable propagation of these self-bending and self-focusing light fields.

    Main Methods:

    • Phase modulation was employed to engineer LGWPs.
    • Numerical simulations and experimental recordings were used to validate the theoretical model.
    • Intensity patterns and propagation stability were analyzed.

    Main Results:

    • Controllable LGWPs exhibiting self-acceleration and self-focusing along parabolic paths were successfully generated.
    • Experimental and numerical results showed excellent agreement with the theoretical propagation model.
    • Stable propagation over multiple Rayleigh lengths was achieved for spatiotemporally controlled LGWPs.

    Conclusions:

    • A theoretical model for multi-dimensional controllable LGWPs was established.
    • The findings promote the development of self-bending and autofocusing structured light fields.
    • Controllable LGWPs offer a novel platform for advanced optical applications.