对组合锥型光纤表面增强拉曼(SERS)探针的结构参数进行了设计与优化.通过建立描述消逝波激发组合锥光纤探针表面纳米颗粒的激发光衰减系数模型,结合激发光经渐变锥段的全反射传输、探针平直段与激发光纤间的模式匹配原理,给出了组合锥型光纤SERS探针的结构参数设计与优化方法.利用该设计与优化方法,在给定光纤和纳米颗粒结构以及周围环境和激发光功率下,进行了光纤SERS探针结构参数的模拟设计.
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