(Peer-Reviewed) Liquid crystal-integrated metasurfaces for an active photonic platform
Dohyun Kang ¹, Hyeonsu Heo ¹, Younghwan Yang ¹, Junhwa Seong ¹, Hongyoon Kim ¹, Joohoon Kim ¹, Junsuk Rho ¹ ² ³ ⁴ ⁵
¹ Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
² Department of Chemical Engineering, 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 36763, Republic of Korea
⁴ POSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics, Pohang 37673, Republic of Korea
⁵ National Institute of Nanomaterials Technology (NINT), Pohang 37673, Republic of Korea
Opto-Electronic Advances, 2024-04-25
Abstract
Metasurfaces have opened the door to next-generation optical devices due to their ability to dramatically modulate electromagnetic waves at will using periodically arranged nanostructures. However, metasurfaces typically have static optical responses with fixed geometries of nanostructures, which poses challenges for implementing transition to technology by replacing conventional optical components.
To solve this problem, liquid crystals (LCs) have been actively employed for designing tunable metasurfaces using their adjustable birefringent in real time. Here, we review recent studies on LC-powered tunable metasurfaces, which are categorized as wavefront tuning and spectral tuning. Compared to numerous reviews on tunable metasurfaces, this review intensively explores recent development of LC-integrated metasurfaces.
At the end of this review, we briefly introduce the latest research trends on LC-powered metasurfaces and suggest further directions for improving LCs. We hope that this review will accelerate the development of new and innovative LC-powered devices.
Genetic algorithm assisted meta-atom design for high-performance metasurface optics
Zhenjie Yu, Moxin Li, Zhenyu Xing, Hao Gao, Zeyang Liu, Shiliang Pu, Hui Mao, Hong Cai, Qiang Ma, Wenqi Ren, Jiang Zhu, Cheng Zhang
Opto-Electronic Science
2024-09-20
Surface-patterned chalcogenide glasses with high-aspect-ratio microstructures for long-wave infrared metalenses
Zhaofeng Gu, Yixiao Gao, Kongsi Zhou, Junyang Ge, Chen Xu, Lei Xu, Mohsen Rahmani, Ran Jiang, Yimin Chen, Zijun Liu, Chenjie Gu, Yaoguang Ma, Jianrong Qiu, Xiang Shen
Opto-Electronic Science
2024-09-03
Racemic dielectric metasurfaces for arbitrary terahertz polarization rotation and wavefront manipulation
Jie Li, Xueguang Lu, Hui Li, Chunyu Song, Qi Tan, Yu He, Jingyu Liu, Li Luo, Tingting Tang, Tingting Liu, Hang Xu, Shuyuan Xiao, Wanxia Huang, Yun Shen, Yan Zhang, Yating Zhang, Jianquan Yao
Opto-Electronic Advances
2024-08-28