Author： Abramavicius D.
Publisher： Edp Sciences
E-ISSN： 1286-4854|101|5|57007-57007
ISSN： 0295-5075
Source： EPL (EUROPHYSICS LETTERS), Vol.101, Iss.5, 2013-03, pp. : 57007-57007
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Abstract
The exciton scattering approach is applied to describe an exciton-exciton interaction problem in an excitonic linear aggregate. An analytic expression for the scattering amplitude is derived for an infinite periodic system. The result allows to obtain a typical spectral lineshape of the main resonance of the J aggregate in the coherent third-order two-dimensional spectra. The obtained functional form of the scattering allows to suggest a universal expression of the scattering amplitude for delocalized excitons in realistic systems.
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