• 摘要: 超表面作为一种人工构建的平面亚波长阵列,通过精确调控入射光波的振幅、相位、偏振态及频率等参数,能够产生超越传统光学器件的独特电磁响应。传统的超表面设计流程主要依赖数值仿真算法与参数优化相结合,然而这类方法通常具有较高的计算复杂度,且高度依赖设计者的物理直觉与经验积累。近年来,随着各类神经网络架构在超表面设计中的深度集成,设计效率得到显著提升,同时大幅拓展了超表面在光场调控方面的功能实现能力。本文旨在综述神经网络与超表面设计及光场调控的融合研究进展。首先,依据设计范式的差异,将现有方法归纳为四类典型框架:正向预测网络、逆向设计网络、物理信息神经网络及端到端设计网络。继而,剖析神经网络在超表面光场调控中的创新应用,对比分析其核心原理与技术优势。最后,总结当前融合神经网络的超表面在设计理论与实际应用中面临的关键挑战,并展望其未来发展方向。

       

      Abstract: Metasurfaces, as artificially engineered planar subwavelength arrays, can generate unique electromagnetic responses that enable functionalities beyond those of conventional optical devices. This is achieved by precisely manipulating parameters of incident light waves, including amplitude, phase, polarization state, and frequency. Traditional metasurface design workflows primarily rely on numerical simulation algorithms combined with parameter optimization. However, such methods typically exhibit high computational complexity and require substantial physical intuition and accumulated empirical expertise from the designer. In recent years, with the deep integration of various neural network architectures into metasurface design, design efficiency has been significantly enhanced while substantially expanding the capabilities of metasurfaces in light field manipulation. This review aims to summarize research progress on the fusion of neural networks with metasurface design and light field manipulation: First, existing methods are categorized into four typical frameworks based on differences in design paradigms: forward prediction networks, inverse design networks, physics-informed neural networks, and end-to-end design networks. Subsequently, we analyze innovative applications of neural networks in metasurface-based light field manipulation, comparing and contrasting their core principles and technical advantages. Finally, we summarize the key challenges currently faced by metasurfaces in integrating neural networks in both design theory and practical applications, and outline future research directions.