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Cavity-based magnetic metamaterials available from microwave to optical wave by tailoring structural parameters
Journal of the Optical Society of America B ( IF 1.9 ) Pub Date : 2020-08-24 , DOI: 10.1364/josab.396900
Fang Ling , Zheqiang Zhong , Bin Zhang

We proposed a magnetic metamaterial (MM) with extremely large positive and negative permeability. The MMs are structured by simple metal cavity resonators, contributing to exciting magnetic responses from toroid current, dipole current, and nearest-neighbor interactions of the cavity resonator array. When the three responses coupled with each other perfectly, a strong magnetic resonance is obtained. Besides, the cavity-based MM benefits suppress the saturation effect of the magnetic response at optical frequencies, different from that common in traditional split-ring resonators. Therefore, the cavity-based MM is available in microwave, terahertz, and optical regions by appropriately tailoring the structural parameters. Such a cavity-based MM holds a promising strong magnetic response from microwave to optic frequencies only by tailoring structural parameters and provides a new design method to construct magnetic MM.

中文翻译:

通过调整结构参数可从微波到光波使用基于腔的磁性超材料

我们提出了一种具有极大的正磁导率和负磁导率的磁性超材料(MM)。MM由简单的金属空腔谐振器构成,有助于激励来自环形电流,偶极子电流和空腔谐振器阵列最近邻相互作用的磁响应。当三个响应完美地耦合在一起时,可获得强磁共振。此外,基于腔的MM优势可抑制光频率下磁响应的饱和效应,这与传统的开口环谐振器中常见的效应不同。因此,通过适当地调整结构参数,可以在微波,太赫兹和光学区域中使用基于腔的MM。
更新日期:2020-09-02
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