Fig. 1. Structure of the sensor. (a) Cross-sectional view of the SPR-based biointegrated sensor; (b) schematic diagram of the stacking fabrication method

Fig. 2. Resonance loss curve of the sensor when the temperature is 20 ℃

Fig. 3. Sensing characteristic curve of the SPR

Fig. 4. Refractive index characteristic curve of core guided mode at T=20 ℃. (a) Characteristic diagram of core guided mode loss under different mass concentrations; (b) change point and linear fitting diagram of resonance wavelength and mass concentration

Fig. 5. Temperature characteristic curve of core guided mode when n=1.37. (a) Resonance loss diagram at different temperatures; (b) change point and linear fitting diagram of resonance wavelength and temperature