Figure 4
From: Mass production-enabled computational spectrometers based on multilayer thin films

Spectral reconstruction of monochromatic light sources. Monochromatic light with an FWHM of 4 nm at peak wavelengths of (a) 510 nm, (b) 600 nm, (c) 650 nm, (d) 700 nm, (e) 750 nm, and (f) 840 nm. Solid black lines represent reference spectra which are measured by the grating-based spectrometer. Blue circles represent reconstructed spectra using the MTF filter array spectrometer. Solid red lines represent the results of Gaussian fitting. Solid light gray lines represent error between reconstructed and reference spectra.