Extracting single and two-exciton couplings in photosynthetic complexes by coherent two-dimensional electronic spectra

被引：56

作者：

Abramavicius, Darius ^{[1
]}

Palmieri, Benoit ^{[1
]}

Mukamel, Shaul ^{[1
]}

机构：

[1] Univ Calif Irvine, Irvine, CA 92717 USA

来源：

CHEMICAL PHYSICS | 2009年 / 357卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

Excitons; Femtosecond spectroscopy; Photosynthetic aggregates; FEMTOSECOND CORRELATION SPECTROSCOPIES; ENERGY-TRANSFER; PHOTOSYSTEM-I; FMO-COMPLEX; DYNAMICS; ABSORPTION; EMISSION;

D O I：

10.1016/j.chemphys.2008.10.010

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Signatures of "strong" J and "weak" K exciton couplings in the nonlinear femtosecond optical response of the FMO photosynthetic complex are identified. The two types of couplings originate from interactions of molecular transition charge dipoles and change of molecular permanent dipoles in their ground and excited states, respectively. We demonstrate that by combining various two-dimensional optical signals it should be possible to invert spectroscopic data to reconstruct the full exciton Hamiltonian (energies and couplings). (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：79 / 84

页数：6

共 37 条

[1]

ABRAMAVICIUS D, CHEM REV IN PRESS

[2] Double-quantum resonances and exciton-scattering in coherent 2D spectroscopy of photosynthetic complexes [J].