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28 August 2002 High-sensitivity biosensor based on double metal-cladding waveguide
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Proceedings Volume 4904, Optical Fiber and Planar Waveguide Technology II; (2002) https://doi.org/10.1117/12.481219
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China
Abstract
A new method of detecting a minute change in refractive index of an analyte is illustrated in this article. Compared with the sensors based on surface plasmon resonance (SPR), we proposed this new structure of sensor based on the theory of guided wave resonance (GWR). In this proposed double metal-cladding waveguide structure, the sample to be probed serves as its guiding layer, and two metal films act as its cladding layer. Both theoretical simulation and experimental results have shown that the sensitivity enhancement factor of GWR over SPR is more than 1 order higher to the magnitude.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Guang Chen, Zhuangqi Cao, Xiang Li, and Qishun Shen "High-sensitivity biosensor based on double metal-cladding waveguide", Proc. SPIE 4904, Optical Fiber and Planar Waveguide Technology II, (28 August 2002); https://doi.org/10.1117/12.481219
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