A dual‐channel glucose concentration sensor based on coupled cross‐stacked gratings is proposed. When the concentration of glucose solution is varied from 30 to 60 g/100 ml, the maximum values of the bulk sensitivity for peaks at longer and shorter resonance wavelength indicate approximately 615.57 and 262.94 nm/RIU, respectively. Therefore, the sensitivity of channel at longer wavelength is increased by 234.42% compared with that of the shorter wavelength. Advantageously, the dual‐channel sensor with different sensitivities can reduce measurement errors and noise effectively such as background noise and the fluctuation of the light source.

中文翻译：

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基于耦合交叉堆叠光栅的双通道葡萄糖浓度传感器

提出了一种基于交叉交叉堆叠光栅的双通道葡萄糖浓度传感器。当葡萄糖溶液的浓度从30到60 g / 100 ml变化时，在较长和较短谐振波长处的峰的体积灵敏度的最大值分别表示大约615.57和262.94 nm / RIU。因此，与较短波长相比，较长波长的通道的灵敏度提高了234.42％。有利的是，具有不同灵敏度的双通道传感器可以有效减少测量误差和噪声，例如背景噪声和光源波动。