Fig. 4: Summary of published state-of-the-art in quality factor (Q), sensitivity (S), and resonance peak amplitude (A).
From: Nanophotonic sensing and label-free imaging of extracellular vesicles

The numbers within the diamond represent the reference numbers from which these values were obtained. Filled (colored) diamonds indicate that A values are directly or indirectly reported in the literature. Unfiled (clear) diamonds indicate that A values were not reported. Plasmonic resonances generally exhibit low Q and A but high S when compared to dielectric array resonances (high Q and A, low S). Some dielectric array resonances demonstrate exceptionally high Q, albeit often at the expense of reduced A. RIU, refractive index unit