A new method of fabricating single negative metamaterials based on coplanar waveguide
A new method of fabricating single negative metamaterials based on coplanar waveguide
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基于共面波导的单负超材料制备新方法
DOI：
10.1007/s10854-018-9289-4
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发表时间：
2018-05
期刊：
影响因子：
--
通讯作者：
Feiyun Zhang
中科院分区：
文献类型：
--
作者：
Tuanhui Feng;Hongpei Han;Limin Wang;Fei Yang;Feiyun Zhang
研究了一种新的基于共面波导(CPW)的单负超材料(SNM)的制备方法。结果表明，当单片并联电感加载到共面波导上时，可以实现epsilon负超材料(对于我们的实验，在频率f0= 3.67 GHz下)；当加载单一串联片式电容器到共面波导上时，可以实现单片负超材料(对于我们的实验，在频率f0= 3.23 GHz下)。此外，为了进一步证实新方法制备的两种单光子晶体的单负性，同时探索其应用，制备了由新的碳纳米薄膜和多纳米薄膜构成的异质结和光子晶体，并研究了它们的传输特性。结果表明，用新的ENM和MNM制作的异质结确实出现了隧穿现象，并且隧穿频率与异质结长度无关，使异质结适用于亚波长谐振器。此外，对于由新的ENM和MNM构成的光子晶体，观察到零有效相隙的闭合和打开，因此本文提供了一种简单的结构来实现基于传输线的SNM组成的光子晶体。
A new simple method to fabricate single negative metamaterials (SNM) based on the coplanar waveguide (CPW) was studied. It was found that the epsilon-negative metamaterial (ENM) could be realized (under the frequencyf0= 3.67 GHz for our experiment) when the sole shunt chip inductors were loaded onto the CPW, and the mu-negative metamaterial (MNM) could be achieved (under the frequencyf0= 3.23 GHz for our experiment) when loading the sole series chip capacitors onto the CPW. In addition, in order to further confirm the single negative property of the two kinds of SNM fabricated by the new method and meanwhile explore their applications, heterostructures and photonic crystals constructed by the new ENM and MNM were fabricated and their transmission properties investigated. The results showed that the tunneling phenomenon really emerged for the heterostructure fabricated with the new ENM and MNM and the tunneling frequency was also independent of the heterostructure length, making the heterostructure applicable in the subwavelength resonator. Moreover, for the photonic crystals constructed by the new ENM and MNM, the closing and opening of the zero effective phase gap was observed, and so this article provides a simple structure to achieve photonic crystals composed of SNM based on transmission lines.
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