Extended Data Fig. 3: Gap dependence of Raman intensity and vibrational frequency.
From: Visualizing vibrational normal modes of a single molecule with atomically confined light
a, b, Measurements on cobalt (a) and pyrrole (b). Colour-coded vertical grid lines in the leftmost graph indicate vibrational modes analysed in terms of intensity and frequency shift in the middle and right panels, respectively. The extracted powers n from the curve fit (I = az−n) are indicated in the corresponding colours.
