Influence of temperature on the sensitivity and signal-to-noise ratio of a fiber-optic surface-plasmon resonance sensor.
Influence of temperature on the sensitivity and signal-to-noise ratio of a fiber-optic surface-plasmon resonance sensor.
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DOI：
10.1364/ao.45.000151
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发表时间：
2006
期刊：
影响因子：
1.9
通讯作者：
A. Sharma;B. D. Gupta
中科院分区：
文献类型：
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作者：
A. Sharma;B. D. Gupta
从理论上分析了温度对基于表面等离子体共振（SPR）的光纤传感器性能的影响。的传感器的性能进行了评估，在其灵敏度和信噪比（SNR）。温度依赖性的理论模型包括光纤芯和传感层中的热光效应，以及金属层中的声子-电子散射沿着电子-电子散射。比较了温度对两种不同金属的传感器的信噪比和灵敏度的影响。对具有正和负热光系数的敏感层进行了相同的比较。理论模型进行了分析的非遥感和遥感的情况下。这种对温度依赖的SNR和灵敏度的详细分析导致光纤SPR传感器针对温度变化实现最佳性能。
We have theoretically analyzed the influence of temperature on the performance of a fiber-optic sensor based on surface-plasmon resonance (SPR). The performance of the sensor has been evaluated in terms of its sensitivity and signal-to-noise ratio (SNR). The theoretical model for temperature dependence includes the thermo-optic effect in the fiber core and sensing layer, and phonon-electron scattering along with electron-electron scattering in the metal layer. The effect of temperature on the SNR and the sensitivity of the sensor with two different metals has been compared. The same comparison is carried out for the sensing layers with positive and negative thermo-optic coefficients. The theoretical model has been analyzed for both the nonremote and remote sensing cases. This detailed analysis of temperature-dependent SNR and sensitivity leads to achieving the best possible performance from a fiber-optic SPR sensor against the temperature variation.