摘要
The properties of polaritons in a disordered material care studied under the Coherent Potential Approximation.The main results are as follows:(i)The concept of effective wave vector can be used to describe the polariton in a disordered material,(ii)The polariton dispersion in a disordered material is similar to that in a crystalline material.(Hi)The polariton lifetime due to the disorder increases as its energy departs from the resonant region.
作者
CHEN Hong
FANG Junxin
WU Xiang
陈鸿;方俊鑫;吴翔(Department of Applied Physics,Jiaotong University,Shanghai;Pohl-Institute of Solid State Physics,Tongji University,Shanghai)
基金
supported by the Science Fund of the Chinese Academy of Sciences.
