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Fano resonance based on a subwavelength semi-annular-rectangular cavity resonator

机译:基于副半环形 - 矩形静脉谐振器的Fano共振

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摘要

A semi-annular-rectangular cavity based on metal-insulator-metal (MIM) waveguide is proposed. The results show that there are obvious asymmetric transmission peaks in the transmission spectrum due to Fano resonances. The sharp transmission peak with a transmittance of ~0.75 occurs at the wavelength of ~ 1174.99nm . Then a steep dip arises at its right side, and the transmittance is almost 0 at ~1239.22nm . In addition, high sensitivity and figure of merit are also investigated. The performances of the proposed structure are demonstrated by using FDTD method.
机译:提出了一种基于金属 - 绝缘体 - 金属(MIM)波导的半环形矩形腔。结果表明,由于FANO共振引起的透射光谱中存在明显的不对称传输峰。在波长为〜1174.99nm的波长下发生透射率〜0.75的尖锐透射峰。然后在右侧出现陡峭的倾角,透射率几乎0在〜1239.22nm。此外,还调查了高灵敏度和优异图。通过使用FDTD方法证明了所提出的结构的性能。

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