Experimental investigation of a surface plasmon-based integrated-optic humidity sensor
Electronics Letters(2003)
摘要
A humidity sensor has been fabricated by coating a surface plasmon waveguide with a thin layer of Nafion fluoropolymer. The refractive index of Nafion varies as a function of humidity, causing a shift in the plasmon resonance wavelength. The present device is able to measure relative humidity over a range of at least 20% to 50%, while exhibiting good linearity. Furthermore, humidity-induced index ...
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关键词
Humidity transducers,Optical transducers,Integrated optics,Plasmons,Surfaces
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