Fig. 2: The generation of ultra-high contrast signal.
From: A flexible topo-optical sensing technology with ultra-high contrast
a Ir-III complex and its excitation and emission spectrum (b) Top and cross-sectional views of signal generated by an Ir-III indicator layer; (c) A signal image of red blade with ultra-high contrast signal from 3D LSCM reconstruction. d The analysed results for top view signal in the selected image in (b). e Comparison of the nominal line contrast (NLC) for the selected areas in (b) (red line) and Fig. 1e (green line). f The scaling of signal noise ratio (SNR) versus self-contact depth (Hc) for fluorescein o-acrylate (FoA, black symbol) and Iridium-III (IR-III, red symbol). g A time lapsing tracking of signal intensities in (b) and Fig. 1e at εcomp = 0.52, circle for FoA, square for Ir-III, hollow for the peak signals, solid for the background signals. All scale bars are 30 μm.
