激光与光电子学进展, 2019, 56 (7): 072401, 网络出版: 2019-07-30
基于梯形介质光栅金属薄膜结构的折射率传感器 
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Refractive Index Sensor Based on Trapezoidal Dielectric Grating and Metallic Film Structure
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图 2. 反射率与灵敏度的关系曲线。(a)当折射率为1.33时不同光栅高度情况下反射率曲线;(b)当折射率由1.33变化到1.34时的灵敏度随光栅高度的变化图
Fig. 2. Relationship curves of reflectivity and sensitivity. (a) Reflectivity curve at different grating heights when refractive index is 1.33; (b) sensitivity as a function of grating height as refractive index changes from 1.33 to 1.34
图 3. 不同折射率区间的Sθ随ks变化的曲线。(a)折射率由1.33变化到1.34;(b)折射率由1.34变化到1.35
Fig. 3. Curves of Sθ with ks in different refractive index intervals. (a) Refractive index changes from 1.33 to 1.34; (b) refractive index changes from 1.34 to 1.35
图 4. ks=0.73时不同折射率待分析液体的反射谱曲线
Fig. 4. Reflection spectrum curves of liquids with different refractive indexes when ks= 0.73
刘啸, 王正岭. 基于梯形介质光栅金属薄膜结构的折射率传感器[J]. 激光与光电子学进展, 2019, 56(7): 072401. Xiao Liu, Zhengling Wang. Refractive Index Sensor Based on Trapezoidal Dielectric Grating and Metallic Film Structure[J]. Laser & Optoelectronics Progress, 2019, 56(7): 072401.
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