Biexciton resonance energy transfer in a model photosystem.
The absorption of two photons by a concentrated assembly of identical chromophores can lead to formation of a biexciton. This work concerns the transfer of biexcitonic energy from a ring to a central donor, with a particular focus on rates and geometric effects. Quantum amplitudes are expressed in terms of orientation factors with a clear physical significance and detailed calculations are performed on an idealised, three-fold symmetric photosystem-a structural motif common in a variety of natural and artificial light-harvesting systems.
Jenkins
Robert D
RD
School of Chemical Sciences and Pharmacy, University of East Anglia, Norwich, NorfolkUKNR4 7TJ.
Andrews
David L
DL
D004735:Energy Transfer; D008027:Light; D008962:Models, Theoretical; D010788:Photosynthesis / Q000502:physiology*; D045322:Photosynthetic Reaction Center Complex Proteins / Q000502:physiology / Q000528:radiation effects
D045322:Photosynthetic Reaction Center Complex Proteins