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Non-perturbative calculation of 2D spectra in heterogeneous systems: Exciton relaxation in the FMO complex

Brüggemann, Ben LU ; Kjellberg, Pär LU and Pullerits, Tönu LU (2007) In Chemical Physics Letters 444(1-3). p.192-196
Abstract
Experimental 2D frequency resolved spectra showing the relaxation of excitons in the photosynthetic antenna system FMO are reproduced by a multi-exciton density matrix approach explicitly including the external fields. The interference of the polarizations of a number of randomly placed, rotated and energetically inhomogencous complexes is used to extract the signal in the phase matching directions. It is shown that varying the laser intensity has only a minor impact, but changing the phase within the single pulses makes higher order contributions possible which lead to a fundamental change of the 2D spectra. (C) 2007 Elsevier B.V. All rights reserved.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chemical Physics Letters
volume
444
issue
1-3
pages
192 - 196
publisher
Elsevier
external identifiers
  • wos:000249115400035
  • scopus:34547585746
ISSN
0009-2614
DOI
10.1016/j.cplett.2007.07.002
language
English
LU publication?
yes
id
ec70810e-4742-4a1a-a014-8fa4912b7c73 (old id 688345)
date added to LUP
2007-12-05 13:43:40
date last changed
2017-01-01 07:17:26
@article{ec70810e-4742-4a1a-a014-8fa4912b7c73,
  abstract     = {Experimental 2D frequency resolved spectra showing the relaxation of excitons in the photosynthetic antenna system FMO are reproduced by a multi-exciton density matrix approach explicitly including the external fields. The interference of the polarizations of a number of randomly placed, rotated and energetically inhomogencous complexes is used to extract the signal in the phase matching directions. It is shown that varying the laser intensity has only a minor impact, but changing the phase within the single pulses makes higher order contributions possible which lead to a fundamental change of the 2D spectra. (C) 2007 Elsevier B.V. All rights reserved.},
  author       = {Brüggemann, Ben and Kjellberg, Pär and Pullerits, Tönu},
  issn         = {0009-2614},
  language     = {eng},
  number       = {1-3},
  pages        = {192--196},
  publisher    = {Elsevier},
  series       = {Chemical Physics Letters},
  title        = {Non-perturbative calculation of 2D spectra in heterogeneous systems: Exciton relaxation in the FMO complex},
  url          = {http://dx.doi.org/10.1016/j.cplett.2007.07.002},
  volume       = {444},
  year         = {2007},
}