- 作者: --
- 作者服務機構: Department of Chemistry, University of California, Berkeley, Berkeley, California 94720 and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, U.S.A.
- 中文摘要:
Two dimensional (2D) heterodyne-detected electronic photon echo spectroscopy is introduced and described. We give an intuitive description of the origin and information content of 2D electronic spectra, focusing on molecular complexes. We identify two important quantities—the transition dipole term, and the transition frequency cross correlation function that controls the appearance of 2D electronic spectra.
We also show how the transition frequency cross correlation function controls the rate of exciton relaxation. These concepts are illustrated with experimental data on the seven bacteriochlorophyll FMO complex of a green sulfur bacterium, showing how the pathways and mechanisms of energy flow can be elucidated by combining 2D spectra with theoretical modeling. - 英文摘要: --
- 中文關鍵字: Multidimensional spectroscopy; Ultrafast spectroscopy; Photosynthesis.
- 英文關鍵字: --