3D nano-printed geometric phase metasurfaces for generating accelerating beams with complex amplitude manipulation  

作　　者：Tianchen Tang Saima Kanwal Yongzheng Lu Yuelong Li Shuangbao Wu Lei Chen Ziheng Qian Zhouyu Xie Jing Wen Dawei Zhang 

机构地区：[1]Research Center of Optical Instrument and System,Ministry of Education and Shanghai Key Lab of Modern Optical System,University of Shanghai for Science and Technology,Shanghai 200093,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2024年第6期86-95,共10页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.62175153);the National Key R&D Program of China(Grant No.2018YFA0701800)。

摘　　要：Metasurface,a forefront in emerging optical devices,has demonstrated remarkable potential for complex amplitude manipulation of light beams.However,prevailing approaches face challenges in spatial resolution and complexities associated with integrating dynamic phases,impeding the simplified design and reproducible fabrication of metasurfaces.Here,we introduce an innovative approach for complex amplitude modulation within 3D nano-printed geometric phase metasurfaces.Our approach enables the generation of self-accelerating beams by encoding amplitude through phase-only manipulation,achieving high spatial resolution.Notably,this method circumvents the conventional need to adjust the geometric parameters of metasurface unit structures for amplitude manipulation,offering a streamlined and efficient route for design and fabrication complexity.This novel methodology holds promise for expedited and low-cost manufacturing of complex amplitude manipulation metasurfaces.

关 键 词：metasurface complex amplitude manipulation geometric phase 3D nano-printing Airy beam accelerating parabolic beam 

分 类 号：TP391.73[自动化与计算机技术—计算机应用技术] O43[自动化与计算机技术—计算机科学与技术] TB383.1[机械工程—光学工程]