FIGURE 1. Two-dimensional electronic spectra of FMO.
From the following article:
Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems
Gregory S. Engel,
Tessa R. Calhoun,
Elizabeth L. Read,
Tae-Kyu Ahn,
Tomá
Man
al,
Yuan-Chung Cheng,
Robert E. Blankenship
&
Graham R. Fleming
Nature 446, 782-786(12 April 2007)
doi:10.1038/nature05678
Selected two-dimensional electronic spectra of FMO are shown at population times from T = 0 to 600 fs demonstrating the emergence of the exciton 1–3 cross-peak (white arrows), amplitude oscillation of the exciton 1 diagonal peak (black arrows), the change in lowest-energy exciton peak shape and the oscillation of the 1–3 cross-peak amplitude. The data are shown with an arcsinh coloration to highlight smaller features: amplitude increases from blue to white (for a three-dimensional representation of the coloration see Fig. 3a).