Fig. 2 | Scientific Reports

Fig. 2

From: Automated in-situ monitoring of accelerated crystallization processes of nifedipine using terahertz time-domain spectroscopy

Fig. 2

THz absorption coefficient (coeff.) spectra of (a) α-NIF, (b) β-NIF and (c) unaltered amorphous NIF. In (a) and (b), the black dotted line corresponds to the original spectrum, the solid line to the fitted spectrum and the dashed line to the monotonously increasing background absorption. The vertical grey dashed-dotted lines mark the frequency positions of the identified absorption peaks (shaded area).

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