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Two-dimensional electronic spectroscopy with double modulation lock-in detection: enhancement of sensitivity and noise resistance

Augulis, Ramunas LU and Zigmantas, Donatas LU orcid (2011) In Optics Express 19(14). p.13126-13133
Abstract
In many potential applications of two-dimensional (2D) electronic spectroscopy the excitation energies per pulse are strictly limited, while the samples are strongly scattering. We demonstrate a technique, based on double-modulation of incident laser beams with mechanical choppers, which can be implemented in almost any non-collinear four wave mixing scheme including 2D spectroscopy setup. The technique virtually eliminates artifacts or "ghost" signals in 2D spectra, which arise due to scattering and accumulation of long-lived species. To illustrate the advantages of the technique, we show a comparison of porphyrin J-aggregate 2D spectra obtained with different methods following by discussion. (C) 2011 Optical Society of America
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
19
issue
14
pages
13126 - 13133
publisher
Optical Society of America
external identifiers
  • wos:000292876500073
  • scopus:79959907586
ISSN
1094-4087
DOI
10.1364/OE.19.013126
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
be776337-12fc-4706-b748-364514e1f498 (old id 2161896)
date added to LUP
2016-04-01 13:58:36
date last changed
2022-03-14 02:54:49
@article{be776337-12fc-4706-b748-364514e1f498,
  abstract     = {{In many potential applications of two-dimensional (2D) electronic spectroscopy the excitation energies per pulse are strictly limited, while the samples are strongly scattering. We demonstrate a technique, based on double-modulation of incident laser beams with mechanical choppers, which can be implemented in almost any non-collinear four wave mixing scheme including 2D spectroscopy setup. The technique virtually eliminates artifacts or "ghost" signals in 2D spectra, which arise due to scattering and accumulation of long-lived species. To illustrate the advantages of the technique, we show a comparison of porphyrin J-aggregate 2D spectra obtained with different methods following by discussion. (C) 2011 Optical Society of America}},
  author       = {{Augulis, Ramunas and Zigmantas, Donatas}},
  issn         = {{1094-4087}},
  language     = {{eng}},
  number       = {{14}},
  pages        = {{13126--13133}},
  publisher    = {{Optical Society of America}},
  series       = {{Optics Express}},
  title        = {{Two-dimensional electronic spectroscopy with double modulation lock-in detection: enhancement of sensitivity and noise resistance}},
  url          = {{http://dx.doi.org/10.1364/OE.19.013126}},
  doi          = {{10.1364/OE.19.013126}},
  volume       = {{19}},
  year         = {{2011}},
}