Tunable amplification and absorption properties in double-Λ system of GaAs/AlGaAs multiple quantum wells  

作　　者：YAN Wei WANG Tao LI XiaoMing JIN YaJuan 

机构地区：[1]Wuhan National Laboratory for Optoelectronics,College of Optoelectronic Science and Engineering,Huazhong University of Science and Technology

出　　处：《Chinese Science Bulletin》2013年第1期53-58,共6页

基　　金：supported by the National Natural Science Foundation of China (60877040);the National Basic Research Program of China(2010CB923204)

摘　　要：We study the optical amplification and absorption properties in a double-Λ four level system of GaAs/AlGaAs multiple quantum wells(MQWs) under realistic experimental conditions.The amplification and absorption responses of two weak fields can be achieved by adjusting the relative phase,the probe detuning,and the two pump Rabi frequencies appropriately.The investigation is much more practical than its atomic counterpart because of its flexible design and the wide adjustable parameters.It may provide a new possibility in technological applications for the light amplifier working on quantum coherence effects in MQWs solid-state system.We study the optical amplification and absorption properties in a double-A four level system of GaAs/A1GaAs multiple quantum wells （MQWs） under realistic experimental conditions. The amplification and absorption responses of two weak fields can be achieved by adjusting the relative phase, the probe detuning, and the two pump Rabi frequencies appropriately. The investigation is much more practical than its atomic counterpart because of its flexible design and the wide adjustable parameters. It may provide a new possibility in technological applications for the light amplifier working on quantum coherence effects in MQWs sol- id-state system.

关 键 词：吸收特性 多量子阱 光放大器 可调参数 系统 砷化镓 量子相干效应 量子阱结构 

分 类 号：O471.1[理学—半导体物理]