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首页> 外文期刊>Plasmonics >Free-Space Plasmonic Filter with Dual-Resonance Wavelength Using Asymmetric T-Shaped Metallic Array
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Free-Space Plasmonic Filter with Dual-Resonance Wavelength Using Asymmetric T-Shaped Metallic Array

机译:使用非对称T形金属阵列的双共振波长自由空间等离子体滤波器

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摘要

In this study, we propose a plasmonic freespace filter with dual resonance wavelength by using an asymmetric T-shaped array. The structure under the Tshaped structure forms two metal/insulator/metal cavities with different cavity length. Each cavity supports a specific resonance wavelength. A notch filter for second harmonic generation Nd:YAG laser is also proposed. The filter offers two resonance dips and low sideband. In addition, the filter properties are based on the localized surface plasmon. Therefore, the angle tolerance is extremely high. This makes the proposed structure easy to align. The proposed structure can be used in dual wavelength biosensing detection and dual wavelength thermal emission applications.
机译:在这项研究中,我们通过使用不对称的T形阵列提出了一种具有双共振波长的等离激元自由空间滤波器。 T形结构下的结构形成具有不同腔长的两个金属/绝缘体/金属腔。每个腔支持特定的谐振波长。还提出了用于二次谐波Nd:YAG激光器的陷波滤波器。该滤波器具有两个谐振谷和低边带。此外,过滤器的性能基于局部表面等离子体激元。因此,角度公差非常高。这使得所提出的结构易于对准。提出的结构可用于双波长生物传感检测和双波长热发射应用。

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