Scaling of fluorescence Stokes shift and superradiance coherence size in disordered molecular aggregates

被引:34
作者
Chernyak, V
Meier, T
Tsiper, E
Mukamel, S [1 ]
机构
[1] Univ Rochester, Dept Chem, Rochester, NY 14627 USA
[2] Univ Marburg, Dept Phys, D-35032 Marburg, Germany
[3] Univ Marburg, Ctr Mat Sci, D-35032 Marburg, Germany
关键词
D O I
10.1021/jp991893o
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Fluorescence line shapes and cooperative spontaneous emission in disordered one-dimensional molecular aggregates are calculated using closed expressions derived by applying the method of optimal fluctuation. A simple scaling relation L-s similar to omega(s)(-1/2) is established between the low temperature disorder-induced Stokes shift omega(s) and the superradiance enhancement factor L-s. Scaling of the Stokes shift with aggregate size, and the time-dependent Stokes shift are discussed as well. Excellent agreement is obtained with numerical simulations.
引用
收藏
页码:10294 / 10299
页数:6
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