Second-harmonic generation and spectrum modulation by an active nonlinear metamaterial
Second-harmonic generation and spectrum modulation by an active nonlinear metamaterial
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DOI：
10.1063/1.3111437
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发表时间：
2009-01
影响因子：
4
通讯作者：
Zhiyu Wang;Yu Luo;L. Peng;J. Huangfu;T. Jiang;Dongxing Wang;Hongsheng Chen;L. Ran
中科院分区：
文献类型：
--
作者：
Zhiyu Wang;Yu Luo;L. Peng;J. Huangfu;T. Jiang;Dongxing Wang;Hongsheng Chen;L. Ran
实验研究了由双层金属图案和电压可控二极管组成的超材料样品的非线性特性。在较宽的微波频率范围内观察到明显的二次谐波和频谱调制，表明这种超材料不仅可以在低直流偏置电压下调谐，而且在小功率入射下表现出很强的非线性特性。这些性质是很难在正常的天然材料中发现的。
The nonlinear properties of a metamaterial sample composed of double-layer metallic patterns and voltage controllable diodes are experimentally investigated. Second harmonics and spectrum modulations are clearly observed in a wide band of microwave frequencies, showing that this kind of metamaterial is not only tunable by low dc bias voltage but also behaves strong nonlinear property under a small power incidence. These properties are difficult to be found in normal naturally occurring materials.