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Novel Crescent-Shaped Cavity Resonator Based on Fano Resonance Spectrum
Plasmonics ( IF 3 ) Pub Date : 2021-03-12 , DOI: 10.1007/s11468-021-01390-0
Jun Zhu , Yunbai Qin , Ge Wang , KunKun Zheng

World is rich in unconventional oil and various alternatives to petroleum. However, conventional oil production declines so quickly that it is likely these unconventional oil resources cannot be put into production fast enough and thus will not be compensated sufficiently. We realize detecting rapid detection of water content in heavy oil. The waveguide consists of a metal-insulator-metal (MIM) waveguide, rectangular cavity resonator, and crescent-shaped cavity resonator. The effects of the coupling distance, geometry of the crescent-shaped cavity resonator and its rotation angle, and length and width of the rectangular cavity resonator on the Fano resonance lines were numerically analyzed. Multiple Fano resonances can be produced as the rotation angle of the crescent-shaped cavity resonator is adjusted, and the sensor’s refractive index sensitivity was found to be \(935.71\mathrm{ nm}/\mathrm{RIU}\). By measuring the water content in heavy oil, we found that the Fano resonance lines shift toward shorter wavelengths as the volume fraction of water content increases. The detection resolution in heavy oil \(1.79\times {10}^{-9}\). The results presented here show that water content in heavy oil can be calculated using the measured change in the Fano resonance wavelength.



中文翻译:

基于法诺共振谱的新型月牙形腔谐振器

世界上盛产非常规石油和石油的各种替代品。但是,常规石油产量下降得如此之快,以至于这些非常规石油资源可能无法足够快地投入生产,因此得不到充分的补偿。我们实现对重油中水分的快速检测。该波导由金属-绝缘体-金属(MIM)波导,矩形腔谐振器和月牙形腔谐振器组成。数值分析了耦合距离,月牙形腔谐振器的几何形状及其旋转角度以及矩形腔谐振器的长度和宽度对法诺共振线的影响。调整月牙形谐振腔的旋转角度时,可以产生多个Fano谐振,\(935.71 \ mathrm {nm} / \ mathrm {RIU} \)。通过测量重油中的水分含量,我们发现随着水分含量的增加,法诺共振线向较短的波长移动。重油中的检测分辨率\(1.79 \ times {10} ^ {-9} \)。此处显示的结果表明,可以使用测得的Fano共振波长变化来计算重油中的水分含量。

更新日期:2021-03-12
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