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
The Anderson Model has been extended to a disordered system interacting with light field.A method to obtain polarization of electrons of the system is given,where the disordered system is treated as a crystal plus a d...The Anderson Model has been extended to a disordered system interacting with light field.A method to obtain polarization of electrons of the system is given,where the disordered system is treated as a crystal plus a disordered revision.Criterions for determining whether the method is valid or not for Gaussian distribution disorder and homogeneous disorder have been derived.展开更多
Refractive index including linear and nonlinear terms,zero dispersion wavelength and their relation'to temperature have been given.Theoretical results are consistent with experimental results.
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.
文摘The Anderson Model has been extended to a disordered system interacting with light field.A method to obtain polarization of electrons of the system is given,where the disordered system is treated as a crystal plus a disordered revision.Criterions for determining whether the method is valid or not for Gaussian distribution disorder and homogeneous disorder have been derived.
文摘Refractive index including linear and nonlinear terms,zero dispersion wavelength and their relation'to temperature have been given.Theoretical results are consistent with experimental results.
