Nonexponential photon echo decays from nanostructures: Strongly and weakly localized degenerate exciton states

被引：16

作者：

Erland, J ^{[1
]}

Kim, JC

Bonadeo, NH

Steel, DG

Gammon, D

Katzer, DS

机构：

[1] Univ Michigan, Harrison M Randall Lab Phys, Ann Arbor, MI 48109 USA

[2] USN, Res Lab, Washington, DC 20375 USA

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.60.R8497

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In a narrow GaAs quantum well, we resolve biexponential decays of optical coherences into decay-associated spectra identifying two distinct excitonic behaviors within the same inhomogeneously broadened absorption resonance. These excitonic states with overlapping spectra show different optical nonlinearities which allow us to identify them as noninteracting strongly localized excitonic states and weakly localized strongly interacting excitonic states.

引用

页码：R8497 / R8500

页数：4

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