Boundary integral method to calculate the sensitivity temperature error of microstructured fibre plasmonic sensors

In this paper, using the boundary integral method (BIM), we simulate the effect of temperature fluctuation on the sensitivity of microstructured optical fibre (MOF) surface plasmon resonance (SPR) sensors. The final results indicate that, as the temperature increases, the refractometry sensitivity of our sensor decreases from 1300?nm/RIU at 0??C to 1200?nm/RIU at 50??C, leading to ?7.7% sensitivity reduction and the sensitivity temperature error of 0.15%??C?1 for this case. These results can be used for biosensing temperature-error adjustment in MOF SPR sensors, since biomaterials detection usually happens in this temperature range. Moreover, the signal-to-noise ratio (SNR) of our sensor decreases from 0.265 at 0??C to 0.154 at 100??C with the average reduction rate of ?0.42%??C?1. The results suggest that at lower temperatures the sensor has a higher SNR.