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Dynamical deformed Airy beams with arbitrary angles between two wings.

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    This summary is machine-generated.

    Generalized 2D Airy beams exhibit unique acceleration and propagation dynamics influenced by initial wing angles. Their peak intensity follows a distinct parabolic path, controllable by adjusting these angles.

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    Area of Science:

    • Nonlinear optics
    • Wave propagation physics
    • Photonics

    Background:

    • 2D Airy beams are known for their self-acceleration and self-healing properties.
    • Standard 2D Airy beams typically exhibit a 90° angle between their wings.

    Purpose of the Study:

    • To investigate the acceleration and propagation dynamics of 2D Airy beams with arbitrary initial wing angles.
    • To understand how deviations from the standard 90° wing angle affect beam behavior.

    Main Methods:

    • Numerical simulations of 2D Airy beam propagation.
    • Experimental verification of simulated results.
    • Theoretical analysis of beam dynamics.

    Main Results:

    • Beam acceleration is strongly dependent on the initial wing angle, deviating from the vector superposition principle for non-90° angles.
    • A hyperbolic umbilic catastrophe leads to deformed main lobes propagating parabolically.
    • Peak intensity follows a separate parabolic trajectory from the main lobe, controllable by wing angle.
    • Beams demonstrate self-healing, evolving towards standard Airy patterns over distance.

    Conclusions:

    • Generalized 2D Airy beams exhibit complex dynamics not captured by simple superposition principles.
    • Initial wing angle is a critical parameter for controlling beam acceleration and propagation trajectories.
    • The distinct trajectories of the main lobe and peak intensity offer new possibilities for beam manipulation.