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Cavity ring-down transient absorption spectroscopy (CRD-TAS) : A proof of concept via detection of coherent artifacts of thin substrates

Calvet, Neus A. LU orcid ; Paa, Wolfgang and Dietzek-Ivanšić, Benjamin (2023) In Optics and Laser Technology 163.
Abstract

In this work, we present cavity ring-down transient absorption spectroscopy (CRD-TAS) as a novel technique to temporally resolve transient signals of two-dimensional samples with an increased sensitivity. The successful detection of coherent artifact signals in transparent materials is hereby demonstrated as an initial proof of concept of the singular CRD-TAS method. These experimental results are correlated to mathematical simulations of the nonlinear effects responsible for the coherent artifacts. With regard on the purity grade of each probed material, a weighted superposition of cross-phase modulation and two photon absorption is shown to accurately reproduce the different experimental results obtained with the CRD-TAS setup. These... (More)

In this work, we present cavity ring-down transient absorption spectroscopy (CRD-TAS) as a novel technique to temporally resolve transient signals of two-dimensional samples with an increased sensitivity. The successful detection of coherent artifact signals in transparent materials is hereby demonstrated as an initial proof of concept of the singular CRD-TAS method. These experimental results are correlated to mathematical simulations of the nonlinear effects responsible for the coherent artifacts. With regard on the purity grade of each probed material, a weighted superposition of cross-phase modulation and two photon absorption is shown to accurately reproduce the different experimental results obtained with the CRD-TAS setup. These findings provide a good foundation for further development of the CRD-TAS technique for the investigation of the excited state dynamics of optically thin samples.

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author
; and
publishing date
type
Contribution to journal
publication status
published
keywords
Cavity ring-down method, Cavity-enhanced spectroscopy, Coherent artifact, Ultrafast spectroscopy
in
Optics and Laser Technology
volume
163
article number
109399
publisher
Elsevier
external identifiers
  • scopus:85151277015
ISSN
0030-3992
DOI
10.1016/j.optlastec.2023.109399
language
English
LU publication?
no
id
f5f01872-b268-4732-8d55-a612caa5ba32
date added to LUP
2023-12-13 14:58:04
date last changed
2024-02-05 08:52:08
@article{f5f01872-b268-4732-8d55-a612caa5ba32,
  abstract     = {{<p>In this work, we present cavity ring-down transient absorption spectroscopy (CRD-TAS) as a novel technique to temporally resolve transient signals of two-dimensional samples with an increased sensitivity. The successful detection of coherent artifact signals in transparent materials is hereby demonstrated as an initial proof of concept of the singular CRD-TAS method. These experimental results are correlated to mathematical simulations of the nonlinear effects responsible for the coherent artifacts. With regard on the purity grade of each probed material, a weighted superposition of cross-phase modulation and two photon absorption is shown to accurately reproduce the different experimental results obtained with the CRD-TAS setup. These findings provide a good foundation for further development of the CRD-TAS technique for the investigation of the excited state dynamics of optically thin samples.</p>}},
  author       = {{Calvet, Neus A. and Paa, Wolfgang and Dietzek-Ivanšić, Benjamin}},
  issn         = {{0030-3992}},
  keywords     = {{Cavity ring-down method; Cavity-enhanced spectroscopy; Coherent artifact; Ultrafast spectroscopy}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Optics and Laser Technology}},
  title        = {{Cavity ring-down transient absorption spectroscopy (CRD-TAS) : A proof of concept via detection of coherent artifacts of thin substrates}},
  url          = {{http://dx.doi.org/10.1016/j.optlastec.2023.109399}},
  doi          = {{10.1016/j.optlastec.2023.109399}},
  volume       = {{163}},
  year         = {{2023}},
}