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Observation of anomalously large blue shift of the heavy‐hole photocurrent peak and optical bistability in narrow asymmetric coupled quantum wells

 

作者: Y. J. Ding,   C. L. Guo,   S. Li,   J. B. Khurgin,   K.‐K. Law,   J. Stellato,   C. T. Law,   A. E. Kaplan,   L. A. Coldren,  

 

期刊: Applied Physics Letters  （AIP Available online 1991）
卷期: Volume 59, issue 9  

页码: 1025-1027

 

ISSN:0003-6951

 

年代: 1991

 

DOI:10.1063/1.106333

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Blue shift of the heavy‐hole peak of the photocurrent spectra has been observed, for the first time, in narrow GaAs/Al0.4Ga0.6As asymmetric coupled quantum wells near the heavy‐hole resonance. With an external reverse bias of only −2.35 V, a maximum upward shift of the apparent peak position of ∼6.1 meV has been measured at 78 K. Sharp change of the inhomogeneous linewidth of the heavy‐hole peak has also been observed. cw optical bistability has been observed with the external feedback.

 

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