Fig. 5
From: Hyper-spectral imaging with up-converted mid-infrared single-photons
MIR transmission analysis of biological samples: (a) Egg yolk and (b) yeast. The dashed curved lines show rescaled FTIR spectra for reference, with vertical dashed lines marking the wavelengths of the spatial images in (c) and (d). Contrast images in (e-h) highlight sensitivity to O–H and C–H vibrational transitions. Each spatial image has an area of 775 \({\upmu }\)m by 775 \({\upmu }\)m with 25 \(\upmu\)m step size.
