A multichannel metallic dual nano-wall square split-ring resonator is proposed for both filter and sensor applications. It is comprised of four square split-ring resonators which filter out wavelengths at 598 nm, 675 nm, 753 nm and 838 nm that are transmitted through respective ports connected to the rings. The proposed design is flexible, which allows the filtering of any desired wavelengths by varying the geometry of the ring. By incorporating the nano-walls in the ring, it is likely to excite the non-integer modes, which are not possible in regular rings. The transmission spectrum of the filter lies in a near-infrared region, which is a biological transparency window and makes it interesting for photo-thermal therapy applications. Due to its design benefits, this structure can also be used in biosensing applications. The best sensitivity, Q -factor and figure of merit of the sensor is obtained at 793.3 nm/RIU, 82.1 and 52.9, respectively.

中文翻译：

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多通道金属双纳米壁方形开环谐振器：设计分析与应用

提出了一种用于滤波器和传感器应用的多通道金属双纳米壁方形开口环谐振器。它由四个方形开口环谐振器组成，这些谐振器过滤掉分别通过与环相连的端口传输的598 nm，675 nm，753 nm和838 nm的波长。所提出的设计是灵活的，其允许通过改变环的几何形状来过滤任何期望的波长。通过将纳米壁结合到环中，很可能会激发非整数模式，这在常规环中是不可能的。滤光片的透射光谱位于近红外区域，该区域是生物透明窗口，因此对于光热疗法的应用很有趣。由于其设计优势，该结构还可用于生物传感应用。最佳灵敏度