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Electronic photon echo spectroscopy and vibrations

Christensson, Niklas LU ; Dietzek, B.; Yartsev, Arkady LU and Pullerits, Tönu LU (2010) 5th International Conference on Advanced Vibrational Spectroscopy In Vibrational Spectroscopy 53(1). p.2-5
Abstract
Coupling between electronic and nuclear degrees of freedom in Rhodamine 800 has been studied using fluorescence line narrowing (FLN) and three-pulse photon echo peak shift (3PEPS). From the FLN measurement we extract the Huang-Rhys S-factors and frequencies of 16 Franck-Condon active vibrations clustered in two groups centred around 350 cm(-1) and 1400 cm(-1). The five modes below 500 cm(-1) covered by the excitation pulse spectral band create a complex beating pattern in the 3PEPS measurements. After determining the reorganisation energy of the modes involved in the peak shift measurement we are able to obtain the S-factors of the modes. The S-factors from two different experiments are in good agreement. The dephasing rates of these... (More)
Coupling between electronic and nuclear degrees of freedom in Rhodamine 800 has been studied using fluorescence line narrowing (FLN) and three-pulse photon echo peak shift (3PEPS). From the FLN measurement we extract the Huang-Rhys S-factors and frequencies of 16 Franck-Condon active vibrations clustered in two groups centred around 350 cm(-1) and 1400 cm(-1). The five modes below 500 cm(-1) covered by the excitation pulse spectral band create a complex beating pattern in the 3PEPS measurements. After determining the reorganisation energy of the modes involved in the peak shift measurement we are able to obtain the S-factors of the modes. The S-factors from two different experiments are in good agreement. The dephasing rates of these vibrations deviate significantly from the band-gap law. We propose that the main channel for the dephasing of the modes above 225 cm(-1) is a second order process involving one phonon and a molecular vibration. (C) 2010 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Vibrational relaxation, Spectral density, Huang-Rhys factor, System-bath interaction, Photon echo, Fluorescence line narrowing
in
Vibrational Spectroscopy
volume
53
issue
1
pages
2 - 5
publisher
Elsevier
conference name
5th International Conference on Advanced Vibrational Spectroscopy
external identifiers
  • wos:000278237900002
  • scopus:77951205123
ISSN
0924-2031
DOI
10.1016/j.vibspec.2010.01.009
language
English
LU publication?
yes
id
1149b3dd-d2db-43e8-ada7-22050cf03cdf (old id 1631620)
date added to LUP
2010-07-21 11:28:33
date last changed
2018-05-29 11:28:02
@inproceedings{1149b3dd-d2db-43e8-ada7-22050cf03cdf,
  abstract     = {Coupling between electronic and nuclear degrees of freedom in Rhodamine 800 has been studied using fluorescence line narrowing (FLN) and three-pulse photon echo peak shift (3PEPS). From the FLN measurement we extract the Huang-Rhys S-factors and frequencies of 16 Franck-Condon active vibrations clustered in two groups centred around 350 cm(-1) and 1400 cm(-1). The five modes below 500 cm(-1) covered by the excitation pulse spectral band create a complex beating pattern in the 3PEPS measurements. After determining the reorganisation energy of the modes involved in the peak shift measurement we are able to obtain the S-factors of the modes. The S-factors from two different experiments are in good agreement. The dephasing rates of these vibrations deviate significantly from the band-gap law. We propose that the main channel for the dephasing of the modes above 225 cm(-1) is a second order process involving one phonon and a molecular vibration. (C) 2010 Elsevier B.V. All rights reserved.},
  author       = {Christensson, Niklas and Dietzek, B. and Yartsev, Arkady and Pullerits, Tönu},
  booktitle    = {Vibrational Spectroscopy},
  issn         = {0924-2031},
  keyword      = {Vibrational relaxation,Spectral density,Huang-Rhys factor,System-bath interaction,Photon echo,Fluorescence line narrowing},
  language     = {eng},
  number       = {1},
  pages        = {2--5},
  publisher    = {Elsevier},
  title        = {Electronic photon echo spectroscopy and vibrations},
  url          = {http://dx.doi.org/10.1016/j.vibspec.2010.01.009},
  volume       = {53},
  year         = {2010},
}