Nearly degenerate time-resolved Faraday rotation in an interacting exciton system

被引：10

作者：

Shen, YM ^{[1
]}

Goebel, AM

Khitrova, G

Gibbs, HM

Wang, HL

机构：

[1] Univ Oregon, Dept Phys, Eugene, OR 97403 USA

[2] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.72.233307

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report experimental studies of nearly degenerate time-resolved Faraday rotation (TRFR) of electron spin precession in an interacting exciton system. We show that many-body interactions between excitons strongly modify the TRFR response through the coupling of the spin coherence to two-exciton states. The striking difference between TRFR and transient differential absorption (DA) further reveals that exciton-exciton interactions play crucial but qualitatively different roles in TRFR and DA.

引用

页数：4

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