Fig. 4
From: High-resolution tip-enhanced Raman scattering probes sub-molecular density changes

The resonant TERS images of H2TBPP molecule absorbed on a Ag(111) surface. The excitation energy corresponds to the By transition. a, b TERS images of individual degenerate modes of the bands centered around 810 and 1185 cm−1. The schematic representations of molecular vibrations lay on the individual TERS images and the corresponding frequencies (in cm−1) are given in the top left corners. c, d The experimental TERS images (left panel) and simulated TERS images by integrating band width of 20 cm−1 (right panel)