Fig. 5
From: Scalable miniature on-chip Fourier transform spectrometer for Raman spectroscopy
Comparison of Raman spectra from a conventional spectrometer and the FTS reconstruction for four substances. a Paracetamol. b Ibuprofen. c 100% isopropyl alcohol solution. d Pure glucose powder. The Pearson correlation coefficients, indicating the similarity between each reconstructed spectrum and the conventional spectrometer measurements, are shown for each substance
