PubCard - Parallel bright-field and multi-order edge imaging via wide field-of-view trichannel metalens

(Peer-Reviewed) Parallel bright-field and multi-order edge imaging via wide field-of-view trichannel metalens

Xiaotong Li ¹, Yeseul Kim ¹, Youngsun Jeon ¹, Junhwa Seong ¹, Jaekyung Kim ¹, Peng Tang ¹, Shiqi Hu ¹, Harit Keawmuang ¹, Beomha Yang ², Dongmin Jeon ¹, Le Dai ³, Weiyan Li ⁴ ⁵, Xiaodong Cai ⁶, Jinhui Shi ⁴ ⁵, Yong-Sang Ryu ⁷, Trevon Badloe ⁸ ⁹, Junsuk Rho ¹ ² ³ ¹⁰ ¹¹ ¹²

¹ Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
² Quantum Information Science Program, Graduate School of Convergence Science and Technology, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
³ Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
⁴ Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
中国哈尔滨哈尔滨工程大学物理与光电子工程学院纤维集成光学教育部重点实验室
⁵ Key Laboratory of Photonic Materials and Devices Physics for Oceanic Applications, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
中国哈尔滨哈尔滨工程大学物理与光电学院海洋光子材料与器件物理工业和信息化部重点实验室
⁶ Thin Film Optics R&D Center, Department of High-power Laser Optics Technology and Engineering, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
中国上海中国科学院上海光学精密机械研究所高功率激光元件技术与工程部光学薄膜技术研究与发展中心
⁷ School of Biomedical Engineering, Korea University, Seoul 02841, Republic of Korea
⁸ Department of Electronics and Information Engineering, Korea University, Sejong 30019, Republic of Korea
⁹ Digital Healthcare Center, Sejong Institute for Business and Technology, Korea University, Sejong 30019, Republic of Korea
¹⁰ Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
¹¹ POSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics, Pohang 37673, Republic of Korea
¹² National Institute of Nanomaterials Technology (NINT), Pohang 37673, Republic of Korea

Opto-Electronic Advances, 2026-07-10

https://doi.org/10.29026/oea.2026.250306

https://www.oejournal.org/oea/article/doi/10.29026/oea.2026.250306

Abstract

Modern optical systems require the capability to perform multi-functional and parallel imaging within compact, integrated architectures. However, conventional refractive lenses are bulky, restricted to single-mode operation, and incompatible with planar integration. In this work, we propose a trichannel metalens capable of simultaneously performing bright-field imaging, first-order edge detection, and second-order edge detection over a wide field-of-view (FOV).

Specifically, by encoding combinations of input-output circular polarization, different functions are independently realized in three channels, and the spin-dependent gradient phase is employed to spatially separate them, ensuring that all three functions can be simultaneously captured under linearly polarized illumination, without necessitating mode switching or additional optical components.

Experimental results show that the proposed metalens can parallelly provide three independent imaging functions with clear spatial separation and stable performance over a FOV ranging from −10° to 10°. Our approach offers a promising path toward compact, integrated imaging systems for biomedical imaging, real-time edge analysis, and machine vision applications.

Parallel bright-field and multi-order edge imaging via wide field-of-view trichannel metalens_1

Parallel bright-field and multi-order edge imaging via wide field-of-view trichannel metalens_2

Parallel bright-field and multi-order edge imaging via wide field-of-view trichannel metalens_3

Parallel bright-field and multi-order edge imaging via wide field-of-view trichannel metalens_4

Highly sensitive DUV-SWIR photodetectors by natural flavonoid-derivative isomers through a multisite chelation strategy

Nan Ding, Donggang Li, Mingyu Yao, Yanqi Liu, Hailong Liu, Guoqiang Fang, Ge Zhu, Xiaodong Li, Wen Xu, Bin Dong

Opto-Electronic Science

2026-06-17

Triplet exciton harvesting via TADF in hafnium chlorides array scintillator screen enables ultrahigh-resolution X-ray imaging

Jun'an Lai, Yi Ye, Xu Liu, Sijun Cao, Shiji Zhou, Wenxia Zhang, Kang An, Peng He, Tingming Jiang, Xiaosheng Tang, Rui Zhou, Dong Zhang

Opto-Electronic Advances

2026-06-08

Vacancy oscillating mode in amorphous binary oxide film by terahertz time domain spectroscopy

Huan Liu, Haiyun Huang, Heng Yu, Zhi Gong, Fei Yu, Zheng Zhang, Zhiyong Tan, Juncheng Cao, Haiyun Liu, Kan-Hao Xue, Xiangshui Miao, Yan Liu, Yue Hao, Genquan Han, Qihua Xiong

Opto-Electronic Advances

2026-06-08

Rayleigh-driven ethanol cluster tracking based on non-contact deep optical molecular diagnosis

Geon Mo Kim, Yun Ji Hwang, Chengyi Li, Teajong Hwang, In-Sung Hwang, James Hone, Seong Chan Jun

Opto-Electronic Advances

2026-06-08

Imprinted high-Q polymer micro-ring resonator array for high-resolution photoacoustic tomography

Hyeonwoo Kim, Wei-Kuan Lin, Linyu Ni, Mohammad Ali, Xueding Wang, Guan Xu, L. Jay Guo

Opto-Electronic Advances

2026-06-08

Emerging optical techniques for sorting and detection of chiral particles

Yuzhi Shi, Chengfeng Li, Xiaolei Lin, Wenwen Xue, Chengxing Lai, Tao He, Qinghua Song, Zhanshan Wang, Yulan Wang, Din Ping Tsai, Xinbin Cheng, Haidong Zou

Opto-Electronic Advances

2026-06-08

Phonon-assisted absorption photoconductive switch

Zhao Wang, Lixin Zhang, Lu Cheng, Danwen Zhang, Yu Lu, Naiji Zhang, Xin Zhang, Duanyang Chen, Zhan Sui, Hongji Qi, Wei Zheng

Opto-Electronic Science

2026-05-25

Photonic spiking reinforcement learning for intelligent routing

Shuiying Xiang, Yonghang Chen, Ling Zheng, Zhicong Tu, Xintao Zeng, Mengting Yu, Shuai Wang, Yahui Zhang, Xingxing Guo, Weitao Pan, Yue Hao

Opto-Electronic Science

2026-05-25

Multistable soliton dynamics in an optical microresonator

Zichun Liao, Yuchong Cai, Lun Li, Weiqiang Wang, Shuai Li, Chi Zhang, Wenfu Zhang, Xinliang Zhang

Opto-Electronic Advances

2026-05-15

AI-powered nonlinear optical imaging reveals protein spatial homogenization as an indicator of impaired bone quality in type 2 diabetes

Bowen Zhang, Jiangbo Pu, Tao Hu, Junjie Zeng, Han Zhang, Zemeng Chen, Xiang Ji, Shuhua Yue, Lin Z. Li, Ting Li

Opto-Electronic Advances

2026-05-15

Highly sensitive SWCNT-based pyroelectric phototransistors for broadband room temperature infrared detection

Svetlana I. Serebrennikova, Daria S. Kopylova, Yuriy G. Gladush, Sakellaris Mailis, Nikita E. Gordeev, Aliya R. Vildanova, Aleksandr V. Averchenko, Sergey S. Zhukov, Dmitry V. Krasnikov, Albert G. Nasibulin

Opto-Electronic Advances

2026-05-15

Active retinal projection augmented reality display via pixel-to-pixel collimation

Xiang Zhang, Yuanlong Huang, Weiyao Fan, Enguo Chen, Jiajun Luo

Opto-Electronic Advances

2026-05-15

A flexible wireless system for prospective photodynamic therapy applications Cavity-assisted nonlocal metasurfaces for momentum-space broadband-operational optical vortice generation with maximum efficiency approaching 80%