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Photonic nano-structures for water quality monitoring

机译：用于水质监测的光子纳米结构

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We propose a new type of sensors suitable for water quality testing and for monitoring water contamination levels in domestic, industrial and environmental applications. The proposed sensing scheme uses Fourier transform cavity-enhanced absorption spectroscopy and novel compact sensing elements based on nanostructured photonic crystal-type optical coatings enabling the sensitive Fourier-domain processing methodology and maximising the absorption path length within the measurement system. The measurement scheme is shown to be suitable for the determination of small changes in the water absorption coefficients at a discrete set of wavelengths in the visible spectral region in response to small concentrations of pollutants with high sensitivity. The proposed sensors are expected to provide real-time information on the water contamination levels, as well as potentially the types of substances dissolved.
机译：我们提出了一种新型传感器，适用于水质测试和监测家庭，工业和环境应用中的水污染水平。拟议的传感方案使用傅立叶变换腔增强吸收光谱和基于纳米结构光子晶体型光学涂层的新型紧凑型传感元件，实现了敏感的傅立叶域处理方法，并最大化了测量系统内的吸收路径长度。示出了该测量方案适合于响应于低浓度的污染物而以高灵敏度确定在可见光谱区域中的离散波长集合处的吸水系数的微小变化。预计拟议的传感器将提供有关水污染水平以及溶解物质的潜在类型的实时信息。

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