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Accumulation effects in modulation spectroscopy with high-repetition-rate pulses : Recursive solution of optical Bloch equations

Osipov, Vladimir Al LU and Pullerits, Tõnu LU (2017) In Physical Review A 96(4).
Abstract

Application of the phase-modulated pulsed light for advance spectroscopic measurements is the area of growing interest. The phase modulation of the light causes modulation of the signal. Separation of the spectral components of the modulations allows to distinguish the contributions of various interaction pathways. The lasers with high repetition rate used in such experiments can lead to appearance of the accumulation effects, which become especially pronounced in systems with long-living excited states. Recently it was shown that such accumulation effects can be used to evaluate parameters of the dynamical processes in the material. In this work we demonstrate that the accumulation effects are also important in the quantum... (More)

Application of the phase-modulated pulsed light for advance spectroscopic measurements is the area of growing interest. The phase modulation of the light causes modulation of the signal. Separation of the spectral components of the modulations allows to distinguish the contributions of various interaction pathways. The lasers with high repetition rate used in such experiments can lead to appearance of the accumulation effects, which become especially pronounced in systems with long-living excited states. Recently it was shown that such accumulation effects can be used to evaluate parameters of the dynamical processes in the material. In this work we demonstrate that the accumulation effects are also important in the quantum characteristics measurements provided by modulation spectroscopy. In particular, we consider a model of quantum two-level system driven by a train of phase-modulated light pulses, organized in analogy with the two-dimensional spectroscopy experiments. We evaluate the harmonics' amplitudes in the fluorescent signal and calculate corrections appearing from the accumulation effects. We show that the corrections can be significant and have to be taken into account at analysis of experimental data.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A
volume
96
issue
4
publisher
American Physical Society (APS)
external identifiers
  • scopus:85031714534
  • wos:000413049300017
ISSN
2469-9926
DOI
10.1103/PhysRevA.96.043841
language
English
LU publication?
yes
id
a7fa1fd8-7427-4904-bb17-0297b2fed459
date added to LUP
2017-10-30 14:22:03
date last changed
2018-05-29 10:25:39
@article{a7fa1fd8-7427-4904-bb17-0297b2fed459,
  abstract     = {<p>Application of the phase-modulated pulsed light for advance spectroscopic measurements is the area of growing interest. The phase modulation of the light causes modulation of the signal. Separation of the spectral components of the modulations allows to distinguish the contributions of various interaction pathways. The lasers with high repetition rate used in such experiments can lead to appearance of the accumulation effects, which become especially pronounced in systems with long-living excited states. Recently it was shown that such accumulation effects can be used to evaluate parameters of the dynamical processes in the material. In this work we demonstrate that the accumulation effects are also important in the quantum characteristics measurements provided by modulation spectroscopy. In particular, we consider a model of quantum two-level system driven by a train of phase-modulated light pulses, organized in analogy with the two-dimensional spectroscopy experiments. We evaluate the harmonics' amplitudes in the fluorescent signal and calculate corrections appearing from the accumulation effects. We show that the corrections can be significant and have to be taken into account at analysis of experimental data.</p>},
  articleno    = {043841},
  author       = {Osipov, Vladimir Al and Pullerits, Tõnu},
  issn         = {2469-9926},
  language     = {eng},
  month        = {10},
  number       = {4},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A},
  title        = {Accumulation effects in modulation spectroscopy with high-repetition-rate pulses : Recursive solution of optical Bloch equations},
  url          = {http://dx.doi.org/10.1103/PhysRevA.96.043841},
  volume       = {96},
  year         = {2017},
}