Comparison of the biexciton and exciton coherent polarisation lifetimes in ZnSe/(Zn,Cd)Se multiple quantum wells

被引：10

作者：

Blewett, IJ

Galbraith, I

Tookey, A

Kar, AK

Wherrett, BS

机构：

[1] Department of Physics, Heriot-Watt University, Riccarton

来源：

SEMICONDUCTOR SCIENCE AND TECHNOLOGY | 1997年 / 12卷 / 07期

关键词：

D O I：

10.1088/0268-1242/12/7/011

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report the relative coherence lifetimes far the biexciton polarization and the exciton polarization following ultrafast resonant excitation in ZnSe/(Zn,Cd)Se multiple quantum wells. The excitonic and biexcitonic nature of the observed third-order polarization is demonstrated by selection rules and comparison with a theoretical treatment. We show the polarization coherence lifetimes to be related by a factor of two (T-2(X) = 2T(2)(B)) and discuss the origin of this relationship.

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页码：820 / 824

页数：5

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