Exciton Coherence Length Fluctuations in Chromophore Aggregates Probed by Multidimensional Optical Spectroscopy
Result description
The coherent third order optical response of molecular aggregates with fluctuating frequencies, couplings, and transition dipole moments. We derived stochastic nonlinear exciton equations (by combining the quasiparticle picture of excitons with the pathintegral over stochastic bath paths) and calculated coherent 2D spectra for a tetramer model system whose transition dipole orientations undergo stochastic jumps on an arbitrary timescale. Signatures of domain coherence length fluctuations are observed in the cross peak dynamics in specific pulse polarization configurations.
Keywords
2D optical spectroscopymolecular aggregatesExciton coherence length
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Exciton Coherence Length Fluctuations in Chromophore Aggregates Probed by Multidimensional Optical Spectroscopy
Original language description
The coherent third order optical response of molecular aggregates with fluctuating frequencies, couplings, and transition dipole moments. We derived stochastic nonlinear exciton equations (by combining the quasiparticle picture of excitons with the pathintegral over stochastic bath paths) and calculated coherent 2D spectra for a tetramer model system whose transition dipole orientations undergo stochastic jumps on an arbitrary timescale. Signatures of domain coherence length fluctuations are observed in the cross peak dynamics in specific pulse polarization configurations.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Result continuities
Project
GP202/07/P245: Stochastic modelling in nonlinear spectroscopy
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Chemical Physics
ISSN
0021-9606
e-ISSN
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Volume of the periodical
133
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
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UT code for WoS article
000279640600003
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BE - Theoretical physics
Year of implementation
2010