Numerical investigation for SPR-based optical fiber sensor

作者：Yuan, Yinquan^*; Ding, Liyun; Guo, Zhenqiang

来源：Sensors and Actuators B: Chemical , 2011, 157(1): 240-245.

DOI：10.1016/j.snb.2011.03.056

• Optical fiber sensor
• Surface plasmon resonance
• Multilayer model
• Gold film
• Thickness
• Dispersion relation

In the present work, a theoretical analysis of a surface plasmon resonance (SPR)-based optical fiber sensor is carried out. For the SPR-based optical fiber sensor with four-layer mode (fiber core/metal/sensing layer/sample), the effect of the thickness of metal layer and sensing layer on the spectrum of the transmitted power and wavelength has been studied. Based on the propagation wavevector till the first order expansion of the dispersion function, a detailed explanation for the relationships between the resonance wavelength with the thickness of the metal layer and sensing layer is presented.

• 出版日期2011-9-20
• 单位武汉理工大学