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Beating Signals in 2D Spectroscopy: Electronic or Nuclear Coherences? Application to a Quantum Dot Model System

Seibt, Joachim LU and Pullerits, Tönu LU (2013) In Journal of Physical Chemistry C 117(36). p.18728-18737
Abstract
In 2D electronic spectroscopy, oscillatory signals have recently received increased attention. The key issue is the origin of such beating-whether it is vibrational or electronic. In analogy to the distinction between rephasing and nonrephasing contributions to 2D spectra, we separate signal components with positive and negative coherence beating frequency via a third Fourier transformation and consider two-dimensional cuts at the respective positions. We apply this approach to a model system for the description of quantum dots (QDs) and analyze the possibility to distinguish between vibrational effects associated with the longitudinal optical (LO) phonon mode and electronic fine structure splitting.
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
117
issue
36
pages
18728 - 18737
publisher
The American Chemical Society (ACS)
external identifiers
  • wos:000330162700053
  • scopus:84884187642
ISSN
1932-7447
DOI
10.1021/jp406103m
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
2747278e-0eae-46e6-992a-a13122abf009 (old id 4318767)
date added to LUP
2016-04-01 10:27:55
date last changed
2022-04-12 06:33:44
@article{2747278e-0eae-46e6-992a-a13122abf009,
  abstract     = {{In 2D electronic spectroscopy, oscillatory signals have recently received increased attention. The key issue is the origin of such beating-whether it is vibrational or electronic. In analogy to the distinction between rephasing and nonrephasing contributions to 2D spectra, we separate signal components with positive and negative coherence beating frequency via a third Fourier transformation and consider two-dimensional cuts at the respective positions. We apply this approach to a model system for the description of quantum dots (QDs) and analyze the possibility to distinguish between vibrational effects associated with the longitudinal optical (LO) phonon mode and electronic fine structure splitting.}},
  author       = {{Seibt, Joachim and Pullerits, Tönu}},
  issn         = {{1932-7447}},
  language     = {{eng}},
  number       = {{36}},
  pages        = {{18728--18737}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Physical Chemistry C}},
  title        = {{Beating Signals in 2D Spectroscopy: Electronic or Nuclear Coherences? Application to a Quantum Dot Model System}},
  url          = {{http://dx.doi.org/10.1021/jp406103m}},
  doi          = {{10.1021/jp406103m}},
  volume       = {{117}},
  year         = {{2013}},
}