Long-range surface plasmons for high-resolution surface plasmon resonance sensors
Long-range surface plasmons for high-resolution surface plasmon resonance sensors
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DOI：
10.1016/s0925-4005(00)00724-3
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发表时间：
2001-04-15
影响因子：
8.4
通讯作者：
Yee, SS
中科院分区：
文献类型：
--
作者：
Nenninger, GG;Tobiska, P;Yee, SS
我们介绍了长程表面等离子激元在波长调制型表面等离子体共振传感器中的应用。给出了使用氟化镁和特氟隆AF-1600作为介质缓冲层的两种传感器设计的理论设计参数和实验数据。在折射率测量实验中，这种长程表面等离子体共振传感器的灵敏度比同等的常规表面等离子体共振传感器高出7倍，而测量的分辨率与之相当。根据给出的理论设计计算，进一步优化材料和膜层厚度可以在减小谐振宽度的同时获得更高的灵敏度，从而创造出比传统SPR传感器更高的分辨率。(C)2001 Elsevier Science B.V.保留所有权利。
We present the application of long-range surface plasmons to a wavelength-modulated surface plasmon resonance sensor. Theoretical design parameters and experimental data are presented for two sensor designs, using either magnesium fluoride or Teflon AF-1600 as a dielectric buffer layer. The demonstrated sensitivity of the long-range surface plasmon resonance sensor in refractometric experiments is up to seven times higher than that of an equivalent conventional surface plasmon resonance (SPR) sensor, while the measured resolution is comparable. According to theoretical design calculations presented, further optimization of materials and layer thickness could reduce the resonance width while achieving even higher sensitivities, thereby creating a sensor with significantly better resolution than conventional SPR sensors. (C) 2001 Elsevier Science B.V. All rights reserved.