Biexcitonic resonance in the nonlinear optical response of an InAs quantum dot ensemble

被引：14

作者：

Lenihan, AS

Dutt, MVG

Steel, DG

Ghosh, S

Bhattacharya, P

机构：

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

[2] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA

[3] Univ Michigan, Dept Elect Engn & Comp Sci, Solid State Elect Lab, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW B | 2004年 / 69卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.69.045306

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transient spectral hole burning measurements are applied to an ensemble of InAs self-assembled quantum dots. In addition to the expected exciton hole, we observe an "antihole" due to an induced absorption corresponding to the biexciton state. The biexciton binding energy is consistent with previous measurements in similar systems. The variation of the binding energy over the inhomogeneous quantum dot distribution is also measured, and is found to be consistent with expectations for strongly confined systems as a function of confinement.

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页数：6

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