Generation and application of structured beams based on double-phase holograms[Invited]  

作　　者：贾而穑 谢辰 杨悦 胡明列 Erse Jia;Chen Xie;Yue Yang;Minglie Hu(Ultrafast Laser Laboratory,Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education,School of Precision Instruments and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]Ultrafast Laser Laboratory,Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education,School of Precision Instruments and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China

出　　处：《Chinese Optics Letters》2023年第11期3-9,共7页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.62275191,61605142,and 61827821);the Tianjin Research Program of Application Foundation and Advanced Technology of China(No.17JCJQJC43500);the Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences(Open Fund of the State Key Laboratory of High Field Laser Physics)。

摘　　要：The manipulation of structured light beams requires simultaneous spatial modulation of amplitude and phase.Based on the double-phase holography(DPH)algorithm,we demonstrate an efficient reconstruction of Bessel beams with arbitrary onaxis intensity.Also,the off-axis DPH method enables more than doubled laser energy utilization compared with the widelyused off-axis phase wrapping modulation method.The DPH algorithm is also used in two-photon polymerization to enable the rapid fabrication of microtube arrays,ortho-hexagonal scaffolds,and 2D patterned microstructures.This work gives experimental proof to show the powerful feasibility of the DPH method in constructing economic adaptive laser processing systems.

关 键 词：double-phase HOLOGRAM structured beam two-photon polymerization 

分 类 号：O43[机械工程—光学工程]