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

被引：4
|
作者：
Jia, Erse [1 ]
Xie, Chen [1 ]
Yang, Yue [1 ]
Hu, Minglie [1 ]
机构：
[1] Tianjin Univ, Sch Precis Instruments & Optoelect Engn, Ultrafast Laser Lab, Minist Educ,Key Lab Optoelect Informat Tech Sci, Tianjin 300072, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2023年 / 21卷 / 11期
基金：
中国国家自然科学基金;
关键词：
double-phase; hologram; structured beam; two-photon polymerization; BESSEL BEAMS; AMPLITUDE;
D O I：
10.3788/COL202321.110002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
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.
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收藏
页数：7
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