Optimized single-layer planar optics for wide field-of-view imaging

Yiyang Liu; Qiangbo Zhang; Changwei Zhang; Mengguang Wang; Yunzhe Zheng; Zhenrong Zheng

doi:10.1117/12.3036268

22 November 2024 Optimized single-layer planar optics for wide field-of-view imaging

Yiyang Liu, Qiangbo Zhang, Changwei Zhang, Mengguang Wang, Yunzhe Zheng, Zhenrong Zheng

Author Affiliations +

Proceedings Volume 13239, Optoelectronic Imaging and Multimedia Technology XI; 1323919 (2024) https://doi.org/10.1117/12.3036268
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

Achieving a wide field-of-view (WFOV) is an essential performance criterion for optical imaging systems, crucial for applications ranging from military reconnaissance to biomedical imaging. Metasurfaces, two-dimensional arrays of sub-wavelength nano-atoms, offer exceptional light field control and compact design, presenting a novel solution for WFOV optical systems. This approach addresses the size and cost constraints associated with complex multi - element optical assemblies traditionally used for WFOV imaging. We present a configuration combining a aperture stop with a single-layer metasurface to achieve WFOV operation. Through algorithmic optimization and polynomial fitting techniques for phase distribution, we designed a metalens operating at 803 nm wavelength with a 1.25 mm focal length. This design enables near diffraction-limited monochromatic imaging over a 70° field-of-view. Simulation results validate the efficacy of this method for WFOV imaging, demonstrating significant structural simplification compared to multi-lens systems and offering a novel perspective on metasurface applications in WFOV imaging.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yiyang Liu, Qiangbo Zhang, Changwei Zhang, Mengguang Wang, Yunzhe Zheng, and Zhenrong Zheng "Optimized single-layer planar optics for wide field-of-view imaging", Proc. SPIE 13239, Optoelectronic Imaging and Multimedia Technology XI, 1323919 (22 November 2024); https://doi.org/10.1117/12.3036268

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