Manipulating self-focusing beams induced by high-dimensional parabolic umbilic beams

• DOI: 10.1016/j.rinp.2023.106806
• Publication Date: 2023-08-01T13:11:26Z
• Authors: Zhuo Sun; Juntao Hu; Yishu Wang; Wenni Ye; Yixian Qian
• Keywords: Intensity; Light beam

The excellent property that the intensity of autofocusing beams in focal plane increases exponentially, makes them especially beneficial for biomedical treatment. We experimentally generate tunable (2+1)-dimensional circular parabolic umbilic (CPUBs) first time based on high-dimensional diffraction catastrophe integral, which is determined by potential function. Such CPUBs have and symmetrical distributions space through radial symmetry transformation. Due to flexibility high dimensionality, these light rich field structures self-focusing property. Where, maximum suddenly orders magnitude plane. Unlike classical Airy beams, exhibit multiple points along optical axis a needle-like structure during propagation, can be affected manipulating control parameters. properties provide new perspective exploring novel physical mechanisms phenomena beams. experimental results verify correctness numerical simulations. greatly enrich beam family will advantageous medical treatments, micromanipulation, microscopic imaging.