文献类型：期刊文献

英文题名：Collecting, transporting and sorting micro-particles via the optical slings generated by a liquid crystal q(φ)-plate

作者：Wang, Xiaoqian[1];Wu, Mian[1,2];Ni, Bo[1,3];Peng, Zenghui[4];Shen, D. O. N. G.[1];Zheng, Zhi-Gang[1]

机构：[1]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[2]Zhejiang Univ, Coll Opt Sci & Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China;[3]Peking Univ, Inst Modern Opt, Coll Phys, Beijing 100871, Peoples R China;[4]Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Appl Opt, Changchun 130033, Jilin, Peoples R China

年份：2023

卷号：31

期号：4

起止页码：5736

外文期刊名：OPTICS EXPRESS

收录：;EI(收录号：20230613553628);WOS:【SCI-EXPANDED(收录号:WOS:000942073000005)】；

基金：National Key Research and Development Program of China (SQ2022YFA1200117) ; National Natural Science Foundation of China (62275081, 62035008, 61822504, 51873060, 11874026) ; Shanghai Municipal Education Commission (2021-01-07-00-02-E00107) ; Shanghai Education Development Foundation (21SG29) ; The State Key Laboratory of applied optics (SKLAO2020001A07) .

语种：英文

外文关键词：Liquid crystals - Screening

摘要：We disclose a transporting/collecting optical sling generated by a liquid crystal geometric phase optical element with spatial variant topological charge, which shows the intriguing repelling/indrawing effect on the micro-particle along the spiral orbit. Two proof-of -concept prototypes, i.e., an optical conveyor and a particle collector, are demonstrated. Based on the distinct dynamic characteristics of the micro-particles in different sizes, we conceptually propose a design for particle sorting. Thus, our proposed method to generate a spiral optical sling with spatial variant orbital angular momentum for on-demand collecting, transporting and sorting micro-particles is substantiated, which can find extensive applications in bio-medicine, micro-biology, etc.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement