Dynamically Babinet-invertible metasurface: a capacitive-inductive reconfigurable filter for terahertz waves using vanadium-dioxide metal-insulator transition
Dynamically Babinet-invertible metasurface: a capacitive-inductive reconfigurable filter for terahertz waves using vanadium-dioxide metal-insulator transition
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DOI：
10.1364/oe.24.004405
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发表时间：
2016-03-07
期刊：
影响因子：
3.8
通讯作者：
Kitano, Masao
中科院分区：
文献类型：
--
作者：
Urade, Yoshiro;Nakata, Yosuke;Kitano, Masao
本文提出了一种可重构的平面超材料，它可以利用其组成材料电导率的局部变化在电容和感应响应之间切换。提出的装置是基于Babinet的原理，并利用金属棋盘结构的奇异电磁响应，这是依赖于局部电导率。利用二氧化钒（VO2）的热致金属-绝缘体跃迁，所提出的超材料被设计用来补偿衬底的影响，并在太赫兹区进行了实验表征。这种可重构的超材料可以用作太赫兹波的可切换滤波器和可切换移相器。(C) 2016年美国光学学会
This paper proposes a reconfigurable planar metamaterial that can be switched between capacitive and inductive responses using local changes in the electrical conductivity of its constituent material. The proposed device is based on Babinet's principle and exploits the singular electromagnetic responses of metallic checkerboard structures, which are dependent on the local electrical conductivity. Utilizing the heating-induced metal-insulator transition of vanadium dioxide (VO2), the proposed metamaterial is designed to compensate for the effect of the substrate and is experimentally characterized in the terahertz regime. This reconfigurable metamaterial can be utilized as a switchable filter and as a switchable phase shifter for terahertz waves. (C) 2016 Optical Society of America