Figure 4
From: Layered material platform for surface plasmon resonance biosensing

Sensitivity detection of SLG-protected Cu SPR biosensors. (a) change of spectral position Ψmin(λ) as a function of concentration (n) of HT-2. (b) corresponding change (jump) of phase (δΔ) as a function of n. Dashed lines are sigmoidal fits of λmin and δΔ.