Controllable multiple optical bottles of the circular Airy Swallowtail beam

Although optical bottles have received considerable attention, research on the precise manipulation of multiple-optical-bottle structures has remained relatively limited. In this paper, we innovatively propose a composite circular Airy Swallowtail beam (CASB). Compared with other composite beams, this beam not only generates three optical bottles but also actively controls their propagation properties. The experimental optical field images are in excellent agreement with numerical simulations. By adjusting the radial factor and the initial radius, precise control over the number, length, and width of the optical bottles during propagation is achieved. Furthermore, independent regulation of the intensity distribution of the three optical bottles is realized by tuning the third-order distribution factor and the offset factor in the Swallowtail function. Finally, we construct an experimental optical bottle system. The results demonstrate that different numbers of optical bottles can capture carbon particles. This study provides a novel technical approach for optical trapping and particle manipulation.