材料科学
光电子学
等离子体子
表面等离子体子
光开关
表面等离子体激元
光学
物理
作者
Wei Ma,Hao Zhou,Yulei Huang,Jianshe Guo,Yuehong Zhu,Zhujing Wu,Qiongqiong Gu,Zixiao Miao,Congliao Yan,Shutong Wang,Guoliang Deng,Shouhuan Zhou
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-06-26
卷期号:48 (15): 3885-3885
被引量:4
摘要
We report a voltage-tunable reflective gold wire grid metasurface on vanadium dioxide thin film, which consists of a metal-insulator-metal (MIM) structure. We excite surface plasmon polariton (SPP) modes on the gold surface by fabricating a one-dimensional structured gold wire grid. Joule heating of laser-induced graphene (LIG) can be controlled by the voltage at the bottom, allowing vanadium dioxide in the structure to complete the transition from the insulating state to the metallic state. The phase transition of vanadium dioxide strongly disrupts the plasmon modes excited by the gold wire grid above, thereby realizing a huge change in the reflection spectrum. This acts as a tunable metasurface optical switch with a maximum modulation depth (MD) of over 20 dB. We provide a more effective and simple method for creating tunable metasurfaces in the near-infrared band, which can allow metasurfaces to have wider applications in optical signal processing, optical storage, and holography.
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