Metasurface-based optical Radon transform for complex-amplitude reconstruction

IF 3.8 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2026-10-12 DOI:10.1063/5.0360122

Xinyue Wang,Chenxuan Xiang,Bin Huang,Shuyuan Xiao,Qiegen Liu

引用次数: 0

Abstract

Radon transform is a fundamental mathematical operation in tomography, and its conventional implementation usually relies on digital computation or bulky optical systems. Metasurface provides a new route for compact optical Radon transform. However, existing approaches based on metasurface remain largely limited to amplitude-only imaging and dense projection sampling. In this Letter, we propose an optical Radon transform system for complex-amplitude imaging, in which a wavelet-guided diffusion transformer is further employed to simultaneously recover amplitude and phase information. We also investigate sparse-view sampling to reduce the number of projection measurements and evaluate the robustness of the proposed framework under challenging projection conditions. Our work extends optical Radon imaging from single-channel to multi-channel imaging while reducing the complexity of data acquisition.

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基于超表面的复幅重建光学Radon变换

氡变换是层析成像中的一项基本数学运算，其传统实现通常依赖于数字计算或庞大的光学系统。超表面为紧凑光学氡变换提供了一条新的途径。然而，现有的基于超表面的方法仍然主要局限于仅振幅成像和密集投影采样。在本文中，我们提出了一种用于复杂振幅成像的光学Radon变换系统，该系统进一步采用小波制导扩散变压器同时恢复振幅和相位信息。我们还研究了稀疏视图采样，以减少投影测量的数量，并评估了该框架在具有挑战性的投影条件下的鲁棒性。我们的工作将光学氡成像从单通道扩展到多通道成像，同时降低了数据采集的复杂性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.