Dual channel multilayer-coated surface plasmon resonance sensor for dual refractive index range measurements
Dual channel multilayer-coated surface plasmon resonance sensor for dual refractive index range measurements
复制标题
用于双折射率范围测量的双通道多层涂层表面等离子体共振传感器
DOI：
10.1364/oe.25.008563
复制
发表时间：
2017-04-17
期刊：
影响因子：
3.8
通讯作者：
Masson, Jean-Francois
中科院分区：
文献类型：
--
作者：
Lu, Mengdi;Peng, Wei;Masson, Jean-Francois
提出了一种基于毛细管结构的多层膜表面等离子体共振双折射率传感器。传感元件包括内部涂覆的Ag层和外部涂覆的Au双层以及薄氧化铟锡（ITO）覆盖层。内部Ag层对高折射率介质敏感，而外部Au/ITO层对低折射率介质敏感。我们通过测量两个通道的RI变化来评估传感器的性能，RI灵敏度分别为-1951 nm/RIU和2496 nm/RIU。这种紧凑、低成本的大RI检测范围SPR传感器为工业和化学传感中更宽的RI检测范围和高灵敏度的SPR研究提供了可能性。(C)2016美国光学学会
We present a novel multilayer-coated surface plasmon resonance sensor for dual refractive index range measurements based on a capillary structure. The sensing elements include an internally coated Ag layer and an externally coated bilayer of Au with an overlayer of thin indium tin oxide (ITO). The internal Ag layer was sensitive to higher refractive index (RI) medium while the external Au/ITO layer was sensitive to lower refractive index medium. We evaluated the sensor performance by measuring RI changes in two channels, RI sensitivities were -1951 nm/RIU and 2496 nm/RIU, respectively. This compact, low-cost large RI detection range SPR sensor offers the possibility for wider RI detection range and highly sensitive SPR studies in industry and chemical sensing. (C) 2016 Optical Society of America