title: Accelerating incoherent hollow beams beyond the paraxial regime.
abstract: We propose a non-paraxial hollow accelerating beam, which is formed by incoherently superposing two well-designed coherent accelerating beams. Very interestingly, this incoherent superposition does not hamper the acceleration dynamics pertaining to the coherent ones, but results in a hollow intensity pattern in the cross section transverse to the circular accelerating trajectory. By a simple optimization, this hollow cross section pattern can be effectively extended to an angle close to 90°. The magnitude and the phase of the angular spectrum of the beam are given followed by a suggested scheme to generate the beam in practice. Such highly self-bending hollow beams may find applications in some fields such as optical manipulation.
authors.forename: Yanlong
authors.initials: Y
authors.lastname: Yang
authors.forename: Shaohui
authors.initials: S
authors.lastname: Yan
authors.forename: Xianghua
authors.initials: X
authors.lastname: Yu
authors.forename: Manman
authors.initials: M
authors.lastname: Li
authors.forename: Baoli
authors.initials: B
authors.lastname: Yao