Coherence quantum beats in two-dimensional electronic spectroscopy
Resource
Journal of Physical Chemistry A, 112 (18), 4254-4260
Journal
The Journal of Physical Chemistry A
Pages
4254-4260
Date Issued
2008
Date
2008
Author(s)
Cheng, Y. C.
Abstract
We study the coherence quantum beats in two-dimensional (2D) electronic spectroscopy of a coupled dimer system using a theoretical method based on a time-nonlocal quantum master equation and a recently proposed scheme for the evaluation of the third-order photon echo polarization [Gelin, M. F.; Egorova, D.; Domcek, W. J. Chem. Phys. 2005, 123, 164112]. The simulations show that the amplitude and peak shape beating in the 2D spectra is a result of the interplay between the rephasing and non-rephasing contributions to the 2D signals and can be used to elucidate the coherence dynamics in a multichromophoric system. In addition, the results suggest that the rephasing and non-rephasing 2D spectra contain complementary information, and a study of both of them could provide more dynamical information from 2D electronic spectroscopy.
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
08.pdf
Size
23.17 KB
Format
Adobe PDF
Checksum
(MD5):c1b0470bf5e6b7b7b8bb33ec93fd7de2