Fig. 4
From: Micro-Extinction Spectroscopy (MExS): a versatile optical characterization technique
Post-processing of acquired data. a As-acquired stack of 2D matrices. Integration along the Nλ-axis creates an integrated spectrum image (SI) as shown in c. A point spectrum at a particular x,y-location can be extracted for the region of interest (ROI). b Representation of a raw datacube. c Integrated spectrum image generated by summation along the Nλ-axis. This serves as a map in data post-processing. d Representative point spectra extracted as shown in a for absorbance, reflectance, and darkfield scattering