Ren Yi, Zhang Jingjing, Gao Xinxin, Zheng Xin, Liu Xinyu, Cui Tie Jun
Institute of Electromagnetic Space, Southeast University, Nanjing 210096, People's Republic of China.
State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, People's Republic of China.
J Phys Condens Matter. 2021 Nov 11;34(5). doi: 10.1088/1361-648X/ac31f7.
Spoof plasmonic metamaterials enable the transmission of electromagnetic energies with strong field confinement, opening new pathways to the miniaturization of devices for modern communications. The design of active, reconfigurable, and nonlinear devices for the efficient generation and guidance, dynamic modulation, and accurate detection of spoof surface plasmonic signals has become one of the major research directions in the field of spoof plasmonic metamaterials. In this article, we review recent progress in the studies on spoof surface plasmons with a special focus on the active spoof surface plasmonic devices and systems. Different design schemes are introduced, and the related applications including reconfigurable filters, high-resolution sensors for chemical and biological sensing, graphene-based attenuators, programmable and multi-functional devices, nonlinear devices, splitters, leaky-wave antennas and multi-scheme digital modulators are discussed. The presence of active SSPPs based on different design schemes makes it possible to dynamically control electromagnetic waves in real time. The promising future of active spoof plasmonic metamaterials in the communication systems is also speculated.
赝表面等离激元超材料能够实现具有强场限制的电磁能量传输，为现代通信设备的小型化开辟了新途径。设计用于高效产生和引导、动态调制以及精确检测赝表面等离激元信号的有源、可重构和非线性设备，已成为赝表面等离激元超材料领域的主要研究方向之一。在本文中，我们回顾了赝表面等离激元研究的最新进展，特别关注有源赝表面等离激元设备和系统。介绍了不同的设计方案，并讨论了相关应用，包括可重构滤波器、用于化学和生物传感的高分辨率传感器、基于石墨烯的衰减器、可编程和多功能设备、非线性设备、分离器、漏波天线和多方案数字调制器。基于不同设计方案的有源赝表面等离激元的存在使得实时动态控制电磁波成为可能。我们还推测了有源赝表面等离激元超材料在通信系统中充满希望的未来。
