用于化学传感的柔性太赫兹超材料粘接纸

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Pub Date : 2019-09-01 DOI:10.1109/IRMMW-THz.2019.8873893

Rhiannon Lees, Michael D. Cooke, C. Balocco, A. Gallant

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引用次数: 0

摘要

我们报道了在低损耗，塑料，柔性衬底上制造的用于化学传感的太赫兹超材料。这种超材料被粘在一张纸上，纸上浸透了待分析的液体。当液体与不同折射率的超材料表面接触时，会引起超材料谐振频率的偏移。这种频率的变化可以通过使用太赫兹矢量网络分析仪测量其在0.75-1.1太赫兹频率范围内的复杂传输来检测。该超材料的灵敏度为0.0015折射率单位，光谱分辨率为1 GHz，用VNA系统可以很好地实现。

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Flexible THz Metamaterials Bonded to Paper for Chemical Sensing

We report on THz metamaterials for chemical sensing fabricated on low-loss, plastic, flexible substrates. The metamaterial is bonded to a paper sheet, which is saturated with the liquid to be analysed. Liquids in contact with the metamaterial surface with different refractive indices result in a shift of the metamaterial resonant frequency. This shift in frequency can be detected by measuring its complex transmission using a THz vector network analyser, in the frequency range 0.75–1.1 THz. The sensitivity of the metamaterial is 0.0015 refractive index units for a spectral resolution of 1 GHz which is well achievable with the VNA system.

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2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

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