From non-resonant to resonant meta-devices: imaging, color routing, displaying, and beyond
从非共振到共振超器件：成像、色彩路由、显示及其他
非共鳴から共鳴メタデバイスへ：イメージング、カラー・ルーティング、ディスプレイ、そしてそれ以上の応用
비공명에서 공명 메타소자로: 이미징, 색상 경로 설정, 디스플레이 및 그 이상
De dispositivos metas no resonantes a resonantes: imágenes, direccionamiento de colores, visualización y más
De la métadévice non résonante à la métadévice résonante : imagerie, routage des couleurs, affichage et au-delà
От нерезонансных к резонансным метаустройствам: визуализация, цветоразделение, отображение и за пределами
Weihan Liu 刘唯汉 ¹, Yao Liang 梁尧 ¹, Borui Leng 冷柏鋭 ¹, Shufan Chen 陈舒凡 ¹, Peng-Yi Feng 冯芃轶 ¹ ², Din Ping Tsai 蔡定平 ¹ ³ ⁴
¹ Department of Electrical Engineering and State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Hong Kong SAR 999077, China
中国 香港 香港城市大学电机工程系 太赫兹及毫米波全国重点实验室
² State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
中国 北京 清华大学精密仪器系 精密测试技术及仪器全国重点实验室
³ Department of Physics and State Key Laboratory of Optical Quantum Materials, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
中国 香港 香港城市大学物理系 光量子物质全国重点实验
⁴ Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China
中国 深圳 香港城市大学深圳研究院
The rapid evolution of meta-optics has been largely driven by non-resonant phase-control mechanisms, chiefly geometric and propagation phases, enabling high-efficiency, broadband devices such as achromatic metalenses and structural-color displays. Recently, however, resonant physics, especially bound states in the continuum (BICs) and local to nonlocal transition (LNT), has introduced a fundamentally new paradigm.
This review highlights how the shift from non-resonant to resonant meta-devices is reshaping imaging and display technologies. Resonant architectures unlock unprecedented functionalities that were previously inaccessible with conventional phase-only designs, including ultra-narrowband wavefront control, spectrally decoupled multiplexing, and pixel-level color routing with high spectral purity.
We systematically compare the underlying physics, illustrate key advances in resonant imaging, color manipulation, and structural-color displays, and discuss emerging applications in augmented/virtual reality (AR/VR) and sensing. Ultimately, we outline how resonant meta-optics is expanding the design landscape, offering new avenues toward dynamic, multifunctional, and wavelength-selective photonic systems.
