Open AccessClose-packed optical vortex lattices with controllable structures
Author(s) -
Xinzhong Li,
Haixiang Ma,
Hao Zhang,
Yuping Tai,
Hehe Li,
Miaomiao Tang,
Jingge Wang,
Jie Tang,
Yangjian Cai
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.022965
Subject(s) - angular momentum , vortex , optical vortex , optics , lattice (music) , physics , nanolithography , computer science , topology (electrical circuits) , classical mechanics , medicine , alternative medicine , mathematics , pathology , combinatorics , fabrication , acoustics , thermodynamics
As a spatial structured light field, the optical vortex (OV) has attracted extensive attention in recent years. In practice, the OV lattice (OVL) is an optimal candidate for applications of orbital angular momentum (OAM)-based optical communications, microparticle manipulation, and micro/nanofabrication. However, traditional methods for producing OVLs meet a significant challenge: the OVL structures cannot be adjusted freely and form a close-packed arrangement, simultaneously. To overcome these difficulties, we propose an alternative scheme to produce close-packed OVLs (CPOVLs) with controllable structures. By borrowing the concept of the close-packed lattice from solid-state physics, CPOVLs with versatile structures are produced by using logical operations of expanding OV primitive cells combined with the technique of phase mask generation. Then, the existence of OAM states in the CPOVLs is verified. Furthermore, the energy flow and OAM distribution of the CPOVLs are visualized and analyzed. From a light field physics viewpoint, this work increases the adjustment dimensions and extends the fundamental understanding of the OVL, which will introduce novel applications.