title: Self-healing optical pillar array.
abstract: We generate and investigate a self-healing pillar array with a specific phase function comprised of four engineered cubic phase plates with encoded amplitude and phase. This array shows an enhanced self-healing effect at arbitrary obstructed positions in transverse as well as longitudinal locations along propagation where its symmetrical pattern with uniform intensity distribution can be maintained. The transverse power flow in terms of Poynting vector is studied for better interpretation of the self-healing property.
authors.affiliation: Institute of Modern Optics, Key Laboratory of Optical Information Science & Technology, Ministry of Education of China, Nankai University, Tianjin 300071, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Cao
authors.forename: Yi
authors.initials: Y
authors.lastname: Hua
authors.forename: Changjun
authors.initials: C
authors.lastname: Min
authors.forename: Siwei
authors.initials: S
authors.lastname: Zhu
authors.forename: X-C
authors.initials: XC
authors.lastname: Yuan
mesh_terms: D008962:Models, Theoretical; D055620:Optical Phenomena; D012542:Scattering, Radiation