Transport and correlated fluctuations in the nonlinear optical response of excitons
Transport and correlated fluctuations in the nonlinear optical response of excitons
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DOI：
10.1209/0295-5075/80/17005
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发表时间：
2007-01-01
期刊：
影响因子：
1.8
通讯作者：
Mukamel, S.
中科院分区：
文献类型：
--
作者：
Abramavicius, D.;Valkunas, L.;Mukamel, S.
导出了激子飞秒四波混合的闭合表达式，其中包括通过累积量膨胀产生的慢高斯对角涨落（光谱扩散）和快速马尔可夫涨落引起的非相干激子输运。使用二聚体的模型计算演示了二维光子回波中两个过程的相互作用。版权所有 (C) EPLA，2007。
Closed expressions are derived for the femtosecond four-wave mixing of excitons which include slow Gaussian diagonal fluctuations (spectral diffusion) through the cumulant expansion and incoherent exciton transport induced by fast Markovian fluctuations. The interplay of both processes in the two-dimensional photon echo is demonstrated using model calculations for a dimer. Copyright (C) EPLA, 2007.