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微流控-超材料集成多带太赫兹传感器

Metamaterial-Based Terahertz Multi-Band Sensors Integrated with Microfluidic Channels

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摘要

设计了一种新型的微流控-超材料集成多带太赫兹传感器。模拟了该传感器在探测不同摩尔分数乙醇水溶液时的反射谱。结果表明,随着乙醇摩尔分数的升高,反射谱中四个共振峰的反射率逐渐减小,而峰位逐渐蓝移。分析了传感器共振峰的频率和反射率与乙醇摩尔分数的定量关系,并将其应用于乙醇水溶液的摩尔分数检测中。利用高频处的三个共振峰进行摩尔分数预测,其预测结果误差小于1%。以上结果有助于促进太赫兹时域光谱技术在快速、微量和实时的物质鉴定和生物传感中的应用。

Abstract

In this study, we designed a metamaterial-based terahertz multi-band sensor integrated with microfluidic channels. We simulated the reflection spectra of the sensor during the detection of ethanol-water mixtures containing different concentrations of ethanol. The simulation results show that an increase in the ethanol concentration correlates with a decrease in the reflectivity at the resonant dips and a blue shift of the resonant frequency. We analyzed the quantitative relationship between resonant frequency or reflectivity of the sensor with ethanol concentration, which is in turn used for the prediction of the ethanol concentration in an ethanol-water mixture. Three resonance dips are used for predicting the ethanol concentration and the predicted errors are smaller than 1%. The above results demonstrate the utility of the terahertz time-domain spectroscopic technique in the rapid, real-time, and infinitesimal material identification and bio-sensing.

Newport宣传-MKS新实验室计划
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DOI:10.3788/CJL201946.0614038

所属栏目:太赫兹技术

基金项目:广西自然科学基金、广西高校复杂系统优化与大数据处理重点实验室开放课题、广西光电信息处理重点实验室基金、广西高校大学生创新创业训练计划;

收稿日期:2019-01-31

修改稿日期:2019-03-13

网络出版日期:2019-06-14

作者单位    点击查看

张赟佳:桂林电子科技大学电子工程与自动化学院, 广西 桂林 541004
王少飞:桂林电子科技大学电子工程与自动化学院, 广西 桂林 541004
钟高超:桂林电子科技大学电子工程与自动化学院, 广西 桂林 541004
韩森:桂林电子科技大学电子工程与自动化学院, 广西 桂林 541004
王培:玉林师范学院广西高校复杂系统优化与大数据处理重点实验室, 广西 玉林 310027
银珊:桂林电子科技大学电子工程与自动化学院, 广西 桂林 541004桂林电子科技大学广西光电信息处理重点实验室, 广西 桂林 541004

联系人作者:银珊(syin@guet.edu.cn)

备注:广西自然科学基金、广西高校复杂系统优化与大数据处理重点实验室开放课题、广西光电信息处理重点实验室基金、广西高校大学生创新创业训练计划;

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引用该论文

Yunjia Zhang, Shaofei Wang, Gaochao Zhong, Sen Han, Pei Wang, Shan Yin. Metamaterial-Based Terahertz Multi-Band Sensors Integrated with Microfluidic Channels[J]. Chinese Journal of Lasers, 2019, 46(6): 0614038

张赟佳, 王少飞, 钟高超, 韩森, 王培, 银珊. 微流控-超材料集成多带太赫兹传感器[J]. 中国激光, 2019, 46(6): 0614038

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