用二进制光圈塑造三维衍射图样

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2024-09-18 DOI:10.1063/5.0228120

Panpan Yu, Xiaolong Chen, Jinghan Zhuang, Yijing Wu, Ziqiang Wang, Yinmei Li, Mincheng Zhong, Lei Gong

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引用次数: 0

摘要

在这封信中，我们报告了一种反向设计二元孔径的方法，以在自由空间生成所需的三维（3D）衍射图样。该方法依赖于一种优化累积算法，旨在确定菲涅尔衍射体系中三维目标图案的二元孔径分布。与传统的迭代算法相比，这种算法的特点是对复杂的逆设计具有高保真性。为了证明我们方法的有效性，我们选择了各种二维和三维图案，并使用数字微镜设备生成了这些图案，该设备可作为可重新配置的二元光圈。实验结果表明，生成的衍射图样与目标图案的保真度很高，二维图案和三维图案的平均皮尔逊相关系数分别达到 0.90 和 0.87。我们的研究成果可应用于激光光束整形、结构光照明和衍射光学元件。

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Shaping 3D diffraction patterns with a binary aperture

In this Letter, we report an approach for the inverse design of binary apertures to generate desired three-dimensional (3D) diffraction patterns in free space. The approach relies on an optimal accumulation algorithm, aiming to determine the distribution of the binary aperture for 3D target patterns in the regime of Fresnel diffraction. This algorithm features high fidelity for complex inverse design compared with conventional iterative algorithms. To demonstrate the validity of our method, various 2D and 3D patterns are chosen and generated using a digital micromirror device that serves as a reconfigurable binary aperture. Experimentally, the generated diffraction patterns exhibit high fidelity with respect to the target ones, achieving an averaged Pearson correlation coefficient of 0.90 for 2D patterns and 0.87 for 3D patterns, respectively. Our work may find applications in laser beam shaping, structured light illumination, and diffractive optical elements.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.