题目：Simultaneous 3D and Full Stokes Polarization Imaging Based on All-Dielectric Metalens Network
作者：Ti Sun, Zhenger Yang, Wenhui Cao, Fanghao Zhou, Feng Xu, Bing Cao*, and Chinhua Wang*
单位：School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China
Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical TechnologiesofEducation Ministry of China, Soochow University, Suzhou 215006, China
Abstract:Compared with conventional intensity imaging, 3D and full Stokes polarization imaging can obtain higher-dimensional information about the objects. Here, a simultaneous 3D and full Stokes polarization imaging method using an all-dielectric metalens network (ADMN) has been proposed and experimentally demonstrated. The proposed ADMN is composed of three sub-metalenses simultaneously working for 0°/90°, 45°/135° linear polarization (LP), and left/right-handed circular polarization (L/RCP), respectively, from which the full Stokes polarization images can be obtained. Simultaneously, the 3D images of the object can be constructed by the parallaxes among different images obtained by different sub-metalenses. At the design wavelength of 532 nm, experimental results show that the averaged extinction ratios of the LP and CP of the fabricated ADMN are ≈10:1 and ≈23:1, respectively. The typical depth range of the 3D imaging reaches 250 mm with a diameter of the sub-metalenses of 1.2 mm and a baseline distance of 65 mm between sub-metalenses, and the average relative measurement accuracy is ≈0.8%. The proposed method provides new ideas for simultaneous 3D and full Stokes polarization imaging, target recognition, and stress detection.
摘要：与传统的强度成像相比，3D和全Stokes偏振成像可以获得物体的高维信息。本文提出了一种基于全介质超透镜网络（All-dielectric metalens network，ADMN）的3D-全Stokes偏振成像方法，并进行了实验验证。该ADMN由三个子超透镜构成，分别工作于0°/90°、45°/135°-线偏振（LP）和左/右手圆偏振态（L/RCP），从而获得完整的全Stokes偏振图像。同时，利用不同子超透镜之间的视差，可以构建物体的3D图像。实验结果表明，在设计波长532 nm处，制备的ADMN的LP和CP的平均消光比分别为≈10:1和≈23:1。制备的子透镜直径为1.2 mm，子透镜之间的基线距离为65 mm。ADMN的典型3D成像深度范围为250 mm，相对平均深度测量精度≈0.8%。该方法为3D和全Stokes偏振成像、目标识别和应力检测提供了新的思路。
影响因子：9.8
链接：//doi.org/10.1002/lpor.202500269