Figure 5
From: Tailoring optical properties and stimulated emission in nanostructured polythiophene

Optical properties, isolated in vacuum, for a thiophene chain extracted from the disordered condensate simulation. (a) Optical spectrum. (b) Ring-localization of the optical transitions above, in order of energy –occupied in blue, (hole, h), unoccupied in red, shaded area (electron, e). (c) For the lower-energy excited states (1 and 2), visualization of the orbitals (h, e) mostly involved in the transition (percentage of the full CI vector indicated).