RELATIVE EFFICIENCY OF TRANSIENT AND STATIONARY CHANGES IN EXCITONIC OPTICAL-PROPERTIES OF INGAAS/INP QUANTUM-WELLS

被引：4

作者：

CAMPI, D ^{[1
]}

CORIASSO, C ^{[1
]}

NISOLI, M ^{[1
]}

DESILVESTRI, S ^{[1
]}

机构：

[1] POLITECN MILAN,CNR,DIPARTIMENTO FIS,DEPT ELETTRON QUANTIST & STUMENTAZ ELETTRON,I-20133 MILAN,ITALY

来源：

APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 07期

关键词：

D O I：

10.1063/1.114706

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using an infrared tunable femtosecond source, we investigate the time evolution of exciton absorption bleaching in InGaAs/InP quantum wells at energies slightly below the exciton absorption peak at room temperature. We find that the bleaching due to photogenerated excitons can be stronger than that due to a thermal electron/hole plasma by a factor of 40. Numerical modeling, based on many-body theory, yields a qualitative explanation of this unusual behavior, along with its density and spectral dependence as well. (C) 1995 American Institute of Physics.

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页码：953 / 955

页数：3

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