静脉曲张
表面等离子体激元
等离子体子
谐振器
光电子学
材料科学
二极管
联轴节(管道)
波导管
色散(光学)
表面等离子体子
PIN二极管
光学
物理
电极
电容
量子力学
冶金
作者
Xinyu Liu,Lei Yi,Xin Zheng,Yong‐Xiang Ren,Xinxin Gao,Jingjing Zhang,Tie Jun Cui
标识
DOI:10.1002/admt.202200129
摘要
Abstract A reconfigurable coupler constructed using two spoof surface plasmon polariton (SSPP) waveguides and a spoof localized surface plasmon (SLSP) resonator to achieve switching between the forward and backward coupling of SSPP waves is proposed. By changing the bias voltage applied to the varactor diodes loaded in the SSPP waveguide, the dispersion of the plasmonic structure is adjusted to achieve a reversed group velocity. Consequently, the direction of the coupled SSPP waves can be dynamically controlled at the same operating frequency. The tunability of this coupler can be further improved by incorporating varactor diodes into the SLSP resonator, where forward–backward coupling can be achieved at multiple frequencies.
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