title: Fractal vector optical fields.
abstract: We introduce the concept of a fractal, which provides an alternative approach for flexibly engineering the optical fields and their focal fields. We propose, design, and create a new family of optical fields-fractal vector optical fields, which build a bridge between the fractal and vector optical fields. The fractal vector optical fields have polarization states exhibiting fractal geometry, and may also involve the phase and/or amplitude simultaneously. The results reveal that the focal fields exhibit self-similarity, and the hierarchy of the fractal has the "weeding" role. The fractal can be used to engineer the focal field.
authors.forename: Yue
authors.initials: Y
authors.lastname: Pan
authors.forename: Xu-Zhen
authors.initials: XZ
authors.lastname: Gao
authors.forename: Meng-Qiang
authors.initials: MQ
authors.lastname: Cai
authors.forename: Guan-Lin
authors.initials: GL
authors.lastname: Zhang
authors.forename: Yongnan
authors.initials: Y
authors.lastname: Li
authors.forename: Chenghou
authors.initials: C
authors.lastname: Tu
authors.forename: Hui-Tian
authors.initials: HT
authors.lastname: Wang