Jha Rajan, Sharma Anuj K
ICFO-Institut de Ciències Fotòniques, Mediterranean Technology Park, Barcelona, Spain.
Opt Lett. 2009 Mar 15;34(6):749-51. doi: 10.1364/ol.34.000749.
A high-accuracy aluminum-based surface plasmon resonance (SPR) chalcogenide sensor is proposed for IR. The structure is based on widely used 2S2G chalcogenide glass with aluminum as the SPR active metal. The angular interrogation method has been used to study the performance of the sensor in terms of intrinsic sensitivity (IS) that includes the width and shifts of the SPR curve for a given refractive index of sensing layer. The IS of Al-based chalcogenide glass sensor is almost 400% more as compared with an Au-based one, which is the most widely used SPR active metal. The oxidation problem of an Al-based SPR sensor has been addressed.
提出了一种用于红外的高精度铝基表面等离子体共振（SPR）硫族化物传感器。该结构基于广泛使用的2S2G硫族化物玻璃，以铝作为SPR活性金属。采用角度询问法研究了传感器在本征灵敏度（IS）方面的性能，本征灵敏度包括给定传感层折射率下SPR曲线的宽度和位移。与最广泛使用的SPR活性金属金基传感器相比，铝基硫族化物玻璃传感器的本征灵敏度高出近400%。铝基SPR传感器的氧化问题已得到解决。
