title: Generation and manipulation of super-resolution spherical magnetization chains.
abstract: Based on the inverse Faraday effect, the light-induced magnetization field distributions are investigated for a 4π tight focusing configuration with azimuthally polarized beams. It is found that a superlong (16λ) magnetization chain, composed of 19 subwavelength (0.44λ) spherical spots with longitudinal magnetization field, can be achieved in the focal volume of the objective. Moreover, the magnetic force on a magnetic particle or particle trains produced by tightly focused azimuthally polarized beams are calculated and exploited for the stable trapping of magnetic particles. These unique focal field distributions may find potential applications in confocal microscopy, atom control, and magneto-optical data storage.
authors.forename: Liping
authors.initials: L
authors.lastname: Gong
authors.forename: Lu
authors.initials: L
authors.lastname: Wang
authors.forename: Zhuqing
authors.initials: Z
authors.lastname: Zhu
authors.forename: Xiaolei
authors.initials: X
authors.lastname: Wang
authors.forename: Hua
authors.initials: H
authors.lastname: Zhao
authors.forename: Bing
authors.initials: B
authors.lastname: Gu