Two dimensional electronic spectroscopy of molecular complexes

Minhaeng Cho, Tobias Brixner, Igor Stiopkin, Harsha Vaswani, Graham R. Fleming

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)15-24
Number of pages10
JournalJournal of the Chinese Chemical Society
Volume53
Issue number1
Publication statusPublished - 2006 Feb 1

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Keywords

  • Multidimensional spectroscopy
  • Photosynthesis
  • Ultrafast spectroscopy

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Cho, M., Brixner, T., Stiopkin, I., Vaswani, H., & Fleming, G. R. (2006). Two dimensional electronic spectroscopy of molecular complexes. Journal of the Chinese Chemical Society, 53(1), 15-24.