动态范围可调的波导型SPR传感器模型

Wave-guide SPR sensor with tunable dynamical range

表面等离子体共振 (SPR)技术是一种简单直接的传感技术 ,SPR对金属表面附近的折射率的变化极为敏感 ,利用这一性质 ,表面等离子体共振传感器已成为生物传感器研究领域的热点。现提出一种电光调制波导型SPR模型 ,模拟计算表明该模型在不损害灵敏度的条件下 ,扩大了探测的动态范围。

Surface plasmon resonance (SPR) is a simple and direct detection method.SPR sensors have become the highlight in biosensor field because SPR is sensitive for the change of refractive index on the surface of metal.A wave-guide SPR sensor with electro-optical modulator is presented.The simulation shows that the model can enlarge the dynamical range without damaging the sensitivity.