To explore the propagation laws of multi-spot symmetric structured beams
the propagation characteristics of Airyprime beams in ABCD optical systems (including free space
lens systems and graded-index media) are theoretically analyzed based on the Collins diffraction integral method. Results indicate that the nine spots of the Airyprime beam possess excellent spatial symmetry
and their propagation behavior exhibits significant differences with varying medium types. In free space
as the propagation distance increases
the energy of the central spot gradually diffuses outward
eventually evolving into a four-spot structure that maintains stability over a long propagation distance. In the lens system
the relative intensity distribution of the nine spots remains essentially unchanged during propagation
while the entire beam tends to diverge when the propagation distance exceeds one focal length. In the gradient-index medium
the relative intensity distribution of the beam stays stable
and it presents a unique periodic focusing propagation characteristic due to the inherent focusing effect of the medium. The relevant research results provide a theoretical reference for further exploration of the application of Airyprime beam.
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references
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