Multidimensional Symmetry Engineering of Metasurfaces for Circular Dichroism and Advanced Photonics
Abstract
ABSTRACT Chiral metasurfaces provide a powerful artificial platform for manipulating the spin, phase, and amplitude of light at the subwavelength scale. The ability to generate strong circular dichroism (CD), optical activity, and spin‐selective light‐matter interaction creates new opportunities in chiral sensing, emission, and nonlinear photonics within flat optics. However, navigating the vast and complex geometric parameter space to maximize chiroptical responses remains a formidable challenge. To address this problem, we categorize the core design principles from the perspective of symmetry breaking including in‐plane symmetry breaking, out‐of‐plane symmetry breaking, and low‐symmetry lattice engineering. Furthermore, this review highlights the transformative role of machine learning and inverse design in overcoming the computational bottlenecks of traditional heuristic optimizations. We then review the practical applications of these chiral platforms across both linear and nonlinear regimes, focusing on imaging and holography, chiral sensing and polarization detection, circularly polarized light (CPL) emission, and advanced nonlinear chiral functionalities. Finally, major challenges and future research directions are outlined to guide the rational design and scalable implementation of chiral metasurfaces in next‐generation photonic systems.
Article Details
Authors (18)
Ran Chen
Shanghai Frontiers Science Center of Drug Target Identification and Delivery, Shanghai Key Laboratory for Antibody-Drug Conjugates with Innovative Target, State Key Laboratory of Innovative Immunotherapy, School of Pharmaceutical Sciences
Sen Jiang
State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering
Xudong Zhang
Wenhan Yang
Zhaohui Xie
State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory For Nonequilibrium Synthesis and Modulation of Condensed Matter National Innovation Platform (Center) For Industry‐Education Integration of Energy Storage Technology School of Physics Xi'an Jiaotong University Xi'an China
Yuexin Lin
Yingjie Zhu
Jin Liu
Wenjing Zhu
Wenye Jiang
State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory For Nonequilibrium Synthesis and Modulation of Condensed Matter National Innovation Platform (Center) For Industry‐Education Integration of Energy Storage Technology School of Physics Xi'an Jiaotong University Xi'an China
Suzhen Liu
State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory For Nonequilibrium Synthesis and Modulation of Condensed Matter National Innovation Platform (Center) For Industry‐Education Integration of Energy Storage Technology School of Physics Xi'an Jiaotong University Xi'an China
Binglan Xiong
State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory For Nonequilibrium Synthesis and Modulation of Condensed Matter National Innovation Platform (Center) For Industry‐Education Integration of Energy Storage Technology School of Physics Xi'an Jiaotong University Xi'an China
Yihan Yan
State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory For Nonequilibrium Synthesis and Modulation of Condensed Matter National Innovation Platform (Center) For Industry‐Education Integration of Energy Storage Technology School of Physics Xi'an Jiaotong University Xi'an China
Bo Cai
Zhiyuan Gu
College of Physics and Optoelectrics, Taiyuan University of Technology 2 , Taiyuan 030024,
Shengchun Yang
Nan Zhang
Chao Liang