This had me stumped. They didn't provide descriptions of the images. I had to use my thinker.
Top Left- Raman image
Top Right- Raman with STM
Bottom - Enlarged image with hypothetical molecular arrangement digitally added.
Is any of that correct ?
Raman is a technique that give you what are called spectra that give characteristic information about the chemical bonds between atoms in a molecule.
Raman spectroscopy
I think the images come from the scanning tunneling microscopy.