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 polarit...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.展开更多
基金supported by the Science Fund of the Chinese Academy of Sciences.
文摘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.