Three-pulse photon echo of an excitonic dimer modeled via Redfield theory
(2006) In Journal of Chemical Physics 124(2).- Abstract
- In this article the third-order response of an excitonically coupled dimer is studied. The three-pulse photon echo signals were calculated by extracting polarization components from the total polarization in the corresponding phase-matched directions. The total nonlinear response was obtained by numeric propagation of the density matrix, with the exciton-vibrational coupling modeled via Redfield relaxation theory. The full two-dimensional three-pulse photon echo signals and the peak shift were analyzed in terms of the density-matrix dynamics of coherence dephasing and population relaxation. The location of the two-exciton state was found to be essential for proper modeling of the three-pulse photon echo. In particular, an oscillation in... (More)
- In this article the third-order response of an excitonically coupled dimer is studied. The three-pulse photon echo signals were calculated by extracting polarization components from the total polarization in the corresponding phase-matched directions. The total nonlinear response was obtained by numeric propagation of the density matrix, with the exciton-vibrational coupling modeled via Redfield relaxation theory. The full two-dimensional three-pulse photon echo signals and the peak shift were analyzed in terms of the density-matrix dynamics of coherence dephasing and population relaxation. The location of the two-exciton state was found to be essential for proper modeling of the three-pulse photon echo. In particular, an oscillation in the three-pulse photon echo peak shift is found if the two-exciton state is displaced. The oscillations can be related to the dynamics of the one-exciton coherences. (c) 2006 American Institute of Physics. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/421322
- author
- Kjellberg, Pär LU and Pullerits, Tönu LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Chemical Physics
- volume
- 124
- issue
- 2
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000234607700011
- scopus:30744448636
- ISSN
- 0021-9606
- DOI
- 10.1063/1.2150447
- 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
- caf6a3e5-dbc5-4023-89ff-5e263bfb0959 (old id 421322)
- date added to LUP
- 2016-04-01 12:27:10
- date last changed
- 2022-04-13 19:11:46
@article{caf6a3e5-dbc5-4023-89ff-5e263bfb0959,
abstract = {{In this article the third-order response of an excitonically coupled dimer is studied. The three-pulse photon echo signals were calculated by extracting polarization components from the total polarization in the corresponding phase-matched directions. The total nonlinear response was obtained by numeric propagation of the density matrix, with the exciton-vibrational coupling modeled via Redfield relaxation theory. The full two-dimensional three-pulse photon echo signals and the peak shift were analyzed in terms of the density-matrix dynamics of coherence dephasing and population relaxation. The location of the two-exciton state was found to be essential for proper modeling of the three-pulse photon echo. In particular, an oscillation in the three-pulse photon echo peak shift is found if the two-exciton state is displaced. The oscillations can be related to the dynamics of the one-exciton coherences. (c) 2006 American Institute of Physics.}},
author = {{Kjellberg, Pär and Pullerits, Tönu}},
issn = {{0021-9606}},
language = {{eng}},
number = {{2}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Journal of Chemical Physics}},
title = {{Three-pulse photon echo of an excitonic dimer modeled via Redfield theory}},
url = {{http://dx.doi.org/10.1063/1.2150447}},
doi = {{10.1063/1.2150447}},
volume = {{124}},
year = {{2006}},
}