Urade Yoshiro, Nakata Yosuke, Okimura Kunio, Nakanishi Toshihiro, Miyamaru Fumiaki, Takeda Mitsuo W, Kitano Masao
Opt Express. 2016 Mar 7;24(5):4405-4410. doi: 10.1364/OE.24.004405.
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 (VO), the proposed meta-material 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.
本文提出了一种可重构平面超材料，该超材料可以通过改变其组成材料的局部电导率，在电容性和电感性响应之间进行切换。所提出的器件基于巴比涅原理，并利用了金属棋盘结构的奇异电磁响应，这种响应取决于局部电导率。利用二氧化钒（VO）的热致金属-绝缘体转变，设计了这种超材料以补偿衬底的影响，并在太赫兹波段进行了实验表征。这种可重构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。
