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Nonlinear absorption and gain in InGaAs/GaAs quantum wells

 

作者: Giuliano Coli,   Adriana Passaseo,   Donato Greco,   Roberto Cingolani,   Marco Tagliaferri,   Paolo di Trapani,   Alessandra Andreoni,  

 

期刊: Applied Physics Letters  （AIP Available online 1997）
卷期: Volume 71, issue 7  

页码: 915-917

 

ISSN:0003-6951

 

年代: 1997

 

DOI:10.1063/1.119687

 

出版商: AIP

 

数据来源: AIP

 

摘要:

We present a detailed study of the excitonic nonlinearities in InGaAs/GaAs multiple quantum wells based on both stationary and transient pump-and-probe transmission spectroscopy. Bleaching of the excitonic resonance and free carrier gain have been observed. A quantitative analysis of the observed nonlinearity is provided by means of a rigorous solution of the Bethe–Salpeter equation for the investigated heterostructures. ©1997 American Institute of Physics.

 

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