Dynamic shaping of orbital-angular-momentum beams with an optimized Lee method

被引：0
|
作者：
Hu, Xinyao [1 ]
Zhao, Qian [1 ]
Yu, Panpan [1 ]
Li, Xuanling [1 ]
Wang, Ziqiang [1 ]
Li, Yinmei [1 ,2 ]
Gong, Lei [1 ]
机构：
[1] Univ Sci & Technol China, Dept Opt & Opt Engn, Hefei 230026, Anhui, Peoples R China
[2] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
来源：
OPTICAL MANIPULATION CONFERENCE | 2018年 / 10712卷
关键词：
optical vortices; laser beam shaping; binary optics; Lee method; error diffusion algorithm;
D O I：
10.1117/12.2318884
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Shaping complex fields with a digital micromirror device (DMD) has attracted much attention recently due to its potential application in optical communication and microscopy. In this paper, we present an optimized Lee method to achieve dynamic shaping of orbital-angular-momentum (OAM) beams using a binary DMD. An error diffusion algorithm is introduced to enhance the accuracy for binary-amplitude hologram design, making it possible to achieve high fidelity wavefront shaping while retaining a high resolution. As a proof of concept, we apply this method to create different classes of OAM beams and experimentally demonstrate the dynamic shaping of different OAM beams including pure modes and mixed modes with a switching rate of up to 17.8 kHz.
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页数：3
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