2-D Electronic spectroscopy studies of energy transfer

PHYS 26

Jennifer P Ogilvie, jogilvie@umich.edu, Myers Jeffrey, myersja@umich.edu, Kristin LM Lewis, klmlewis@umich.edu, and Patrick F Tekavec, ptekavec@umich.edu. Department of Physics and Biophysics, University of Michigan, 450 Church St, Ann Arbor, MI 48109
Two-dimensional electronic spectroscopy (2DES) is a powerful new tool for studying energy transfer in biological systems. In analogy to 2D NMR, 2DES reveals the coupling between electronic transitions, which appear as cross-peaks in the 2DES spectrum. The underlying lineshapes are also revealed, free from inhomogeneous broadening. These unique features of 2DES make it an ideal spectroscopy for mapping the flow of energy through multichromophoric systems: traditional nonlinear spectroscopies are a subset of this measurement. We recently implemented a two color 2DES scheme to allow the study of energy transfer over a broad spectral range. We will discuss applications of two color 2DES to the study of a simple donor/acceptor system.
 

Optical Probes of Dynamics in Complex Environments
8:00 AM-12:00 PM, Sunday, April 6, 2008 Morial Convention Center -- Rm. 344, Oral

Division of Physical Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008