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Figure 1

From: Real-time hybrid angular-interrogation surface plasmon resonance sensor in the near-infrared region for wide dynamic range refractive index sensing

Figure 1

Principle of operation for dual measurement of angular SPR reflectance spectrum and angle-fixed SPR reflectance. (a) Dependence of angular SPR reflectance spectrum on large change of sample RI as well as dependence of angle-fixed SPR reflectance on small change of sample RI. (b) Sensorgram of SPR angle when the sample RI change is large. (c) Sensorgram of the angle-fixed SPR reflectance when the sample RI change is small.

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