Slow light between two absorbing resonance in asymmetry double quantum dots  

作　　者：YU ChunChao WANG Tao 

机构地区：[1]Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology [2]College of Physical Science and Technology, Yangtze University

出　　处：《Chinese Science Bulletin》2013年第20期2418-2422,共5页

基　　金：supported by the National Basic Research Program of China (2010CB923204);National High Technology Research and Development Program of China (2008AA03Z404);National Natural Science Foundation of China (60877040)

摘　　要：We demonstrate the slow light in double quantum dots (QDs) resonance dispersion material in theory. The slow factor, absorption, and bandwidth are greatly influenced by the energy difference of the two resonance energy. The bandwidth of this system is up to 60 GHz. The 20 ps input signal pulse is delayed by 180 ps (group index of approximately 55) relative to free-space propagation with little broadening in 1 mm dispersion material for the optical communication wavelength. The signal pulse delay can be tuned by the pump pulse.We demonstrate the slow light in double quantum dots （QDs） resonance dispersion material in theory. The slow factor, absorption, and bandwidth are greatly influenced by the energy difference of the two resonance energy. The bandwidth of this system is up to 60 GHz. The 20 ps input signal pulse is delayed by 180 ps （group index of approximately 55） relative to free-space propagation with little broadening in 1 mm dispersion material for the optical communication wavelength. The signal pulse delay can be tuned by the pump pulse.

关 键 词：双量子点 共振能量 吸收 不对称 脉冲延迟 输入信号 自由空间 信号延迟 

分 类 号：O413[理学—理论物理]