Abstract
Phase and polarization singularities in electromagnetic waves are usually attributed to one-dimensional topologies—lines, knots, and braids. Recently, particle-like structures have been predicted and observed: optical Skyrmions, vortices with spherical polarization, etc. In this article, we devise vector Airy beams with point-like singularity in the focal plane, thus leading to the presence of a particle-like topology. We present an extensive analytical analysis of the spatial spectra and focal structure of such beams. We report on the presence of a free-space lattice of bimerons in such vector Airy beams.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Yijie Shen
Opt. Lett. 46(15) 3737-3740 (2021)
Wenhui Xu, Jie Li, and Jianquan Yao
Opt. Lett. 48(7) 1606-1609 (2023)
Houan Teng, Jinzhan Zhong, Jian Chen, Xinrui Lei, and Qiwen Zhan
Photon. Res. 11(12) 2042-2053 (2023)