摘要
采用随机介质统计模型和FDTD方法模拟了随机介质电场空间分布 根据光子局域化理论 ,讨论了电场的空间分布和介电常数涨落的关系 ,结果表明 ,在一定的介质密度下 ,电磁场是局域化的 。
A novel method based on the statistical model of random medium and the FDTD method in two dimensions is developed to explain the electromagnetic wave spatial distribution in random medium. The relationship between the electromagnetic wave spatial distribution and the dielectric constant fluctuating was discussed based on photon localization theory. The numerical result shows that the fluctuating of the spatial distribution of the scatterers can form some special configuration. This configuration has directly effect on characteristic of localization of electromagnetic wave.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2003年第11期1405-1408,共4页
Acta Photonica Sinica
关键词
随机介质
光子局域化
时域有限差分法
Random medium
Photon localization
FDTD method
Fluctuating
