NONLINEAR OPTICAL-RESPONSE OF CONJUGATED POLYMERS - ELECTRON-HOLE ANHARMONIC-OSCILLATOR PICTURE

被引：103

作者：

MUKAMEL, S

WANG, HX

机构：

[1] Department of Chemistry, University of Rochester, Rochester

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.69.65

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The nonlinear optical response of conjugated polymers is calculated using an electron-hole (exciton) representation. Equations of motion are derived which map the calculation of chi(3) onto the dynamics of N(2N - 1) nonlocal coupled anharmonic oscillators representing electrons and holes, N being the number of double bonds. The scaling of the static chi(3) with size and Coulomb interactions is shown to be directly correlated with the exciton coherence size associated with the relative electron-hole motion.

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页码：65 / 68

页数：4

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