用于超灵敏太赫兹传感的偏振转换超表面中的形状捕获模式共振

2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI:10.1109/IMWS-AMP.2015.7325000

J. Yu, S. Sui, Hua Ma, Y. Pang, Ya Fan, S. Qu

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引用次数: 2

摘要

高质量因数共振在传感器技术中起着重要的作用。我们通过引入由两个分裂椭圆环谐振器(serr)隔开的谐振腔来激发偏振转换超表面(pcm)中的形状捕获模式共振。共振质量因子可达370.75，且共振与角度无关，与极化无关。谐振频率对周围折射率的变化非常敏感，灵敏度为6.76×103nm/RIU。因此，所提出的超表面在等离子体传感中具有令人兴奋的应用前景。

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Shape trapped-mode resonances in polarization conversion metasurfaces for ultra-sensitive terahertz sensing

High quality factor resonances play a significant role in sensor technology. We excite shape trapped-mode resonances in polarization conversion metasurfaces (PCMs) by introducing resonance cavities gaped by two split elliptical ring resonators (SERRs). The quality factor of the resonances can achieve 370.75, and the resonances are angle-independent and polarization independent. Moreover, the resonance frequencies are sensitive to the change of the refractive index of surrounding with the sensitivity of 6.76×103nm/RIU. So the proposed metasurfaces have exciting application prospect in plasmonic sensing.

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2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)

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