Instantaneous Mapping of Coherently Coupled Electronic Transitions and Energy Transfers in a Photosynthetic Complex Using Angle-Resolved Coherent Optical Wave-Mixing

Mercer, I., El-Taha, Y., Kajumba, N., Marangos, J., Tisch, J., Gabrielsen, M., Cogdell, R.J. , Springate, E. and Turcu, E. (2009) Instantaneous Mapping of Coherently Coupled Electronic Transitions and Energy Transfers in a Photosynthetic Complex Using Angle-Resolved Coherent Optical Wave-Mixing. Physical Review Letters, 102(5), (doi:10.1103/PhysRevLett.102.057402) [Book Review]

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Publisher's URL: http://dx.doi.org/10.1103/PhysRevLett.102.057402

Abstract

Understanding the role of coherent electronic motion is expected to resolve general questions of importance in macromolecular energy transfer. We demonstrate a novel nonlinear optical method, angle-resolved coherent wave mixing, that separates out coherently coupled electronic transitions and energy transfers in an instantaneous two-dimensional mapping. Angular resolution of the signal is achieved by using millimeter laser beam waists at the sample and by signal relay to the far field; for this we use a high energy, ultrabroadband hollow fiber laser source. We reveal quantum electronic beating with a time-ordered selection of transition energies in a photosynthetic complex.

Item Type:Book Reviews
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cogdell, Professor Richard and Gabrielsen, Dr Mads
Authors: Mercer, I., El-Taha, Y., Kajumba, N., Marangos, J., Tisch, J., Gabrielsen, M., Cogdell, R.J., Springate, E., and Turcu, E.
College/School:College of Medical Veterinary and Life Sciences > Institute of Molecular Cell and Systems Biology
Journal Name:Physical Review Letters
Publisher:American Physical Society
ISSN:0031-9007
ISSN (Online):1079-7114

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
303032The structure and function of purple bacterial antenna complexesRichard CogdellBiotechnology and Biological Sciences Research Council (BBSRC)BB/D000610/1Institute of Molecular Cell and Systems Biology