Generation and control of multiple optical bottles from chirped Airy–Gaussian vortex beams: theory and experiment

Abstract

New structures in the form of multiple optical bottles (OBs), produced by the chirped Airy–Gaussian vortex beams (CAGVBs) in free space, are derived numerically and experimentally. By selecting appropriate parameters, multiple OB structures with different sizes, different locations, and amounts of individual ‘bottles’ in them are produced. These characteristics of the output can be adjusted by selecting the chirp factor, width, and topological charge of the input beams, as well as by offset of the embedded vortices from the central position. In this work, we address the structured built of one, two, three and four OBs. The produced beams demonstrate the self-healing effect, restoring their complex shape after hitting an obstacle. Experimental results are consistent with the numerical ones, directly demonstrating the creation of OBs and their ability to trap and keep microparticles, offering the potential for the use in optical tweezers.