超构表面光场调控：从局域响应到非局域自由度

张树斌; 肖淑敏; 宋清海

doi:10.7693/wl20260203

物理

超构表面光场调控：从局域响应到非局域自由度

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张树斌, 肖淑敏, 宋清海. 2026: 超构表面光场调控：从局域响应到非局域自由度, 物理, 55(2): 93-102. doi: 10.7693/wl20260203

引用本文:

张树斌, 肖淑敏, 宋清海. 2026: 超构表面光场调控：从局域响应到非局域自由度, 物理, 55(2): 93-102. doi: 10.7693/wl20260203

ZHANG Shu-Bin, XIAO Shu-Min, SONG Qing-Hai. 2026: Metasurface light-field control：from local responses to nonlocal degrees of freedom, Physics, 55(2): 93-102. doi: 10.7693/wl20260203

Citation:

ZHANG Shu-Bin, XIAO Shu-Min, SONG Qing-Hai. 2026: Metasurface light-field control：from local responses to nonlocal degrees of freedom, Physics, 55(2): 93-102. doi: 10.7693/wl20260203

超构表面光场调控：从局域响应到非局域自由度

哈尔滨工业大学(深圳) 深圳 518055

通讯作者: 宋清海，email:qinghai.song@hit.edu.cn

Metasurface light-field control：from local responses to nonlocal degrees of freedom

Harbin Institute of Technology(Shenzhen), Shenzhen 518055, China

Corresponding author: SONG Qing-Hai, qinghai.song@hit.edu.cn

摘要:
超构表面为光场调控提供了一种超薄且高度可设计的平台，其早期研究主要依赖亚波长结构单元的局域散射响应，在实空间中实现对光场相位、振幅与偏振的点对点调制，推动了平面光学器件的快速发展。近年来，随着导模共振、连续域束缚态等物理机制的引入，超构表面逐渐突破局域调控范式，获得非局域自由度，从而在动量空间中呈现出显著的波矢依赖特性。在这一调控框架下，光场操控从单纯的局域响应设计，拓展为对空间频率分量与延展模态的整体工程化调控，使空间微分、能量横向输运及多功能光场操纵等局域器件难以实现的功能成为可能。围绕局域响应与非局域自由度的物理内涵与实现路径，文章系统梳理二者的本质差异及协同关系，以深化对超构表面光场调控机制的理解，并为新一代平面光学器件的发展提供物理依据。
- 超构表面 /
- 光场调控 /
- 局域响应 /
- 非局域
Abstract:
Metasurfaces provide an ultrathin and highly designable platform for optical field manipulation. Early studies primarily relied on the local scattering responses of subwavelength meta-atoms, enabling point-by-point modulation of the phase, amplitude, and polarization of light in real space and thereby driving the rapid development of planar optical devices. In recent years, with the introduction of physical mechanisms such as guided-mode resonances and bound states in the continuum, metasurfaces have progressively acquired nonlocal degrees of freedom, thereby exhibiting pronounced wavevector-dependent characteristics in momentum space. Within this emerging framework, light-field manipulation has been extended from purely local response design to the holistic engineering of spatial-frequency components and delocalized modes, enabling functionalities that are difficult or impossible to achieve with conventional local metasurfaces, including spatial differentiation, lateral energy transport, and multifunctional optical-field control. A systematic examination of the physical implications and implementation pathways of local responses and nonlocal degrees of freedom, together with their intrinsic distinctions and cooperative interplay, is therefore essential for deepening our understanding of metasurface-based light-field control mechanisms and for providing a solid physical foundation for the development of next-generation planar optical devices.
- metasurfaces /
- light-field control /
- local response /
- nonlocality .

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超构表面光场调控：从局域响应到非局域自由度

通讯作者: 宋清海，email:qinghai.song@hit.edu.cn

哈尔滨工业大学(深圳) 深圳 518055

收稿日期: 2026-01-13

关键词:

摘要:

超构表面为光场调控提供了一种超薄且高度可设计的平台，其早期研究主要依赖亚波长结构单元的局域散射响应，在实空间中实现对光场相位、振幅与偏振的点对点调制，推动了平面光学器件的快速发展。近年来，随着导模共振、连续域束缚态等物理机制的引入，超构表面逐渐突破局域调控范式，获得非局域自由度，从而在动量空间中呈现出显著的波矢依赖特性。在这一调控框架下，光场操控从单纯的局域响应设计，拓展为对空间频率分量与延展模态的整体工程化调控，使空间微分、能量横向输运及多功能光场操纵等局域器件难以实现的功能成为可能。围绕局域响应与非局域自由度的物理内涵与实现路径，文章系统梳理二者的本质差异及协同关系，以深化对超构表面光场调控机制的理解，并为新一代平面光学器件的发展提供物理依据。

English Abstract

Metasurface light-field control：from local responses to nonlocal degrees of freedom

Corresponding author: SONG Qing-Hai, qinghai.song@hit.edu.cn

哈尔滨工业大学(深圳) 深圳 518055

Received Date: 2026-01-13

Keywords:

Abstract:

Metasurfaces provide an ultrathin and highly designable platform for optical field manipulation. Early studies primarily relied on the local scattering responses of subwavelength meta-atoms, enabling point-by-point modulation of the phase, amplitude, and polarization of light in real space and thereby driving the rapid development of planar optical devices. In recent years, with the introduction of physical mechanisms such as guided-mode resonances and bound states in the continuum, metasurfaces have progressively acquired nonlocal degrees of freedom, thereby exhibiting pronounced wavevector-dependent characteristics in momentum space. Within this emerging framework, light-field manipulation has been extended from purely local response design to the holistic engineering of spatial-frequency components and delocalized modes, enabling functionalities that are difficult or impossible to achieve with conventional local metasurfaces, including spatial differentiation, lateral energy transport, and multifunctional optical-field control. A systematic examination of the physical implications and implementation pathways of local responses and nonlocal degrees of freedom, together with their intrinsic distinctions and cooperative interplay, is therefore essential for deepening our understanding of metasurface-based light-field control mechanisms and for providing a solid physical foundation for the development of next-generation planar optical devices.

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超构表面光场调控：从局域响应到非局域自由度

通讯作者: 宋清海，email:qinghai.song@hit.edu.cn

Metasurface light-field control：from local responses to nonlocal degrees of freedom

Corresponding author: SONG Qing-Hai, qinghai.song@hit.edu.cn

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超构表面光场调控：从局域响应到非局域自由度

通讯作者: 宋清海，email:qinghai.song@hit.edu.cn

English Abstract

Metasurface light-field control：from local responses to nonlocal degrees of freedom

Corresponding author: SONG Qing-Hai, qinghai.song@hit.edu.cn

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