Printing flexible terahertz metasurface of optical transparency
Printing flexible terahertz metasurface of optical transparency
复制标题
印刷光学透明的柔性太赫兹超表面
DOI：
10.1088/1361-6463/aaf84c
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Liu Weiwei
中科院分区：
文献类型：
--
作者：
Su Wenming;Guo Wenrui;Wang Zhiguo;Chen Ping;Gong Cheng;Lin Lie;Liu Weiwei
本文报道了一种光学透明超表面及其打印方法。超表面的双螺旋对称结构对太赫兹或微波入射角度不敏感，特别适用于柔性和非平面元件。该印刷方法结合了镍模电镀和银纳米颗粒油墨印刷。利用该方法，可以将螺旋结构制作在超薄、柔性和透明的基板上，以实现可见光透明。为了验证这一点，设计并打印了一个厚度为200 μm，面积为120× 120 mm 2的柔性超表面滤波器，工作在太赫兹频率范围内。测量了不同弯曲条件下的透射光谱，结果与预期一致。
The paper reports an optical transparent metasurface and printing method. The double spiral symmetric structure of the metasurface is insensitive to the angle of incident terahertz or microwave, especially suitable for flexible and non-planar components. The printing method combines electroplating of nickel mold and printing of silver nanoparticle ink. Using the method, the spiral structure can be fabricated on ultrathin, flexible, and transparent substrates to achieve visible light transparency. For verification, a flexible metasurface filter with thickness of 200 μm and area of 120× 120 mm 2, which works in terahertz frequency range, is designed and printed. The transmission spectra under different bending conditions are measured and the results are consistent with the expectations.