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    Three-dimensional chirped Airy Complex-variable-function Gaussian vortex (CACGV) wave packets exhibit stable rotation in strongly nonlocal nonlinear media (SNNM). This study analyzes their diverse forms, rotation physics, and radiation forces on nanoparticles.

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    Area of Science:

    • Nonlinear optics
    • Wave propagation
    • Complex-variable-function optics

    Background:

    • Nonlocal nonlinear media exhibit unique light-matter interactions.
    • Vortex wave packets possess orbital angular momentum, influencing their propagation dynamics.
    • Airy beams offer self-healing and non-diffracting properties.

    Purpose of the Study:

    • To investigate the stable rotation of 3D chirped Airy Complex-variable-function Gaussian vortex (CACGV) wave packets.
    • To analyze the influence of the distribution parameter on CACGV wave packet dynamics.
    • To explore the underlying physics of rotation, including Poynting vector and angular momentum, and their effect on nanoparticles.

    Main Methods:

    • Theoretical analysis of CACGV wave packet propagation in SNNM.
    • Numerical simulations to validate theoretical predictions under zero perturbation.
    • Calculation of Poynting vector and angular momentum to explain rotation.
    • Analysis of radiation forces exerted by CACGV wave packets on nanoparticles.

    Main Results:

    • CACGV wave packets demonstrate stable rotation in SNNM, forming various structures like dipoles, elliptic vortices, and doughnuts.
    • Numerical simulations accurately reproduce theoretical predictions for CACGV wave packet behavior.
    • The Poynting vector and angular momentum are identified as key factors governing the rotation phenomenon.
    • Radiation forces of CACGV wave packets on nanoparticles in SNNM are quantified.

    Conclusions:

    • CACGV wave packets are a versatile tool for manipulating light in SNNM.
    • The study provides a comprehensive understanding of the rotational dynamics and forces associated with these wave packets.
    • Findings have potential applications in optical trapping and manipulation of micro/nanoparticles.