Figure 4

Comparative analysis of the reflectance response generated (a) with HfO2 and (b) without HfO2 layer-based SPR refractive index sensor. The variation in both layered structures is shown for the phase change material's two phases (aGST/cGST).

Comparative analysis of the reflectance response generated (a) with HfO2 and (b) without HfO2 layer-based SPR refractive index sensor. The variation in both layered structures is shown for the phase change material's two phases (aGST/cGST).