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涡旋波超表面研究现状与应用进展

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涡旋波超表面以其独特的电磁波操控能力和轨道角动量(OAM)特性,为电磁波的精准调控和应用提供了新的自由度.阐述了涡旋波的基本理论,包括其产生的原理及携带的轨道角动量的特性.介绍了涡旋波超表面的两大类型——反射型和透射型超表面,总结了涡旋波测量技术,为评估涡旋波超表面的性能提供了科学有效的方法.进而介绍了涡旋波超表面在提高无线通信系统的网络空间安全、数据传输容量、雷达系统的目标探测能力以及全息成像技术的成像质量等方面的应用.对涡旋波超表面的未来发展方向进行了展望,包括高阶多模式OAM波的研究、远距离传输中波束发散问题的解决、可重构涡旋波超表面的设计、OAM隐秘信号传输以及多通道复用技术的开发等,为网络空间安全的建设提供支撑,为无线通信、雷达探测以及光学成像等领域提供更加高效、灵活的技术解决方案.
The research status and application progress of orbital angular momentum wave metasurface
With the advancement of radio technology,there is a growing demand for high-precision electromagnetic wavefront manipulation.Vortex electromagnetic wave technology and its applications have emerged as an international academic frontier and a research hotspot.With its unique ability to manipulate the electromagnetic waves and characteristics of orbital angular momentum(OAM),vortex wave metasurface provides a new degree of freedom for precison modulation and application of electromagnetic waves.This paper first reviewed the fundamental theory of the vortex wave,including its generating principles and the characteristics of orbital angular momentum which it has carried.Then it introduced the two primary categories of vortex wave metasurfaces:reflective and transmissive metasurfaces.Subsequently,it summarized the measurement technology for vortex waves,providing a scientific and effective approach to evaluate the performance of vortex wave metasurfaces.The paper also discussed the applications of vortex wave metasurfaces in the fields,including to improve the cyberspace security and the data transmission capacity for the wireless communication systems,the target detection capabilities of radar systems,and the imaging quality of holographic imaging technology.Finally,it outlines future development directions for vortex wave metasurfaces,including research of high-order multi-mode OAM waves,solution of the beam divergence in long-distance transmission,design of reconfigurable vortex wave metasurfaces,development of OAM covert signal transmission and multi-channel multiplexing technology,to strengthen the security of cyber space and provide more efficient and flexible technical solutions in the fields of wireless communications,radar detection,optical imaging,and etc.

vortex wavemetasurfaceorbital angular momentum

司黎明、陈璐璐、孙厚军、吕昕

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北京理工大学集成电路与电子学院,北京 100081

毫米波与太赫兹技术北京市重点实验室,北京 100081

北京理工大学唐山研究院,唐山 063000

涡旋波 超表面 轨道角动量

国家重点研发计划国家自然科学基金国家自然科学基金国家自然科学基金北京市自然科学基金-海淀原始创新联合基金教育部供需对接就业育人项目重点领域校企合作项目教育部产学合作协同育人项目教育部产学合作协同育人项目高等学校学科科研创新引智计划

2022YFF0604801622710566217118662201037L22204220230101577220802936304151221003880110032B14010

2024

10.3981/j.issn.1000-7857.2024.02.00240

科技导报
中国科学技术协会

科技导报

CSTPCD北大核心
影响因子：0.559
ISSN：1000-7857
年,卷(期)：2024.42(12)
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