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Two Dimensional Electronic Spectroscopy
Fleming, Graham R.,Yang, Min-O,Agarwal, Ritesh,Prall, Bradley S.,Kaufman, Laura J.,Neuwahl, Fred Korean Chemical Society 2003 Bulletin of the Korean Chemical Society Vol.24 No.8
Two different electronically resonant two-dimensional spectroscopies are described. The first, two-color photon echo peak shift spectroscopy, is sensitive to correlations in transition frequency between the initial and probed (final) states. It provides new insight into the mechanism of ultrafast solvation and should prove useful for characterizing dynamics in inhomogeneous systems in general. The second technique, fifth order threepulse scattering, contains two coherence periods whose durations are controlled. The entire two-dimensional surface was recorded for a dye molecule in dilute solution and a photosynthetic light-harvesting complex. The data provide insight into the short-time dynamics of solvation and exciton relaxation, respectively.