Two-dimensional electronic spectroscopy of an excitonically coupled dimer
(2006) In Physical Review B (Condensed Matter and Materials Physics) 74(2).- Abstract
- The two-dimensional three-pulse photon echo signals from a dimer system are investigated in detail. A perturbative approach is used to calculate the response of the system via a numerical propagation of the density matrix in exciton state representation. Exciton vibrational coupling is modeled by Redfield relaxation theory. The main goal of this paper is to dissect the two-dimensional spectrum of the dimer to give better understanding of how the dynamics influence the spectral features. We will show how different Liouville pathways lead to the appearance/disappearance of diagonal and cross peaks. The inclusion of a Gaussian shaped electric field will be contrasted to the use of delta-pulses in the impulsive limit. The impulsive limit is... (More)
- The two-dimensional three-pulse photon echo signals from a dimer system are investigated in detail. A perturbative approach is used to calculate the response of the system via a numerical propagation of the density matrix in exciton state representation. Exciton vibrational coupling is modeled by Redfield relaxation theory. The main goal of this paper is to dissect the two-dimensional spectrum of the dimer to give better understanding of how the dynamics influence the spectral features. We will show how different Liouville pathways lead to the appearance/disappearance of diagonal and cross peaks. The inclusion of a Gaussian shaped electric field will be contrasted to the use of delta-pulses in the impulsive limit. The impulsive limit is found to be a satisfactory approximation at long population times, while at shorter times, in the pulse-overlap region, more realistic electric fields are called for. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/398991
- author
- Kjellberg, Pär LU ; Brüggemann, Ben LU and Pullerits, Tönu LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B (Condensed Matter and Materials Physics)
- volume
- 74
- issue
- 2
- publisher
- American Physical Society
- external identifiers
-
- wos:000239426600041
- scopus:33746439778
- ISSN
- 1098-0121
- DOI
- 10.1103/PhysRevB.74.024303
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- f5ba2e18-53a3-4397-a6c3-5e0e58526c04 (old id 398991)
- date added to LUP
- 2016-04-01 16:31:26
- date last changed
- 2022-01-28 20:17:47
@article{f5ba2e18-53a3-4397-a6c3-5e0e58526c04,
abstract = {{The two-dimensional three-pulse photon echo signals from a dimer system are investigated in detail. A perturbative approach is used to calculate the response of the system via a numerical propagation of the density matrix in exciton state representation. Exciton vibrational coupling is modeled by Redfield relaxation theory. The main goal of this paper is to dissect the two-dimensional spectrum of the dimer to give better understanding of how the dynamics influence the spectral features. We will show how different Liouville pathways lead to the appearance/disappearance of diagonal and cross peaks. The inclusion of a Gaussian shaped electric field will be contrasted to the use of delta-pulses in the impulsive limit. The impulsive limit is found to be a satisfactory approximation at long population times, while at shorter times, in the pulse-overlap region, more realistic electric fields are called for.}},
author = {{Kjellberg, Pär and Brüggemann, Ben and Pullerits, Tönu}},
issn = {{1098-0121}},
language = {{eng}},
number = {{2}},
publisher = {{American Physical Society}},
series = {{Physical Review B (Condensed Matter and Materials Physics)}},
title = {{Two-dimensional electronic spectroscopy of an excitonically coupled dimer}},
url = {{http://dx.doi.org/10.1103/PhysRevB.74.024303}},
doi = {{10.1103/PhysRevB.74.024303}},
volume = {{74}},
year = {{2006}},
}