空时域求解左手介质中逆切仑科夫辐射  

Solution in time-space domain for cerenkov radiation in left handed materials

作　　者：秦卫平[1] 张业荣[2] 

机构地区：[1]南京邮电大学数理学院,江苏南京210003 [2]南京邮电大学通信与信息工程学院,江苏南京210003

出　　处：《电波科学学报》2005年第5期570-574,共5页Chinese Journal of Radio Science

基　　金：江苏省教育厅基金项目;新世纪优秀人才支持计划(NCET040519)

摘　　要：在空时域中利用推迟势推导了左手介质材料中的逆切仑科夫效应,并对比经典的正常切仑科夫效应进行了讨论。给出了逆切仑科夫辐射波矢锥角公式、背向辐射能量锥角公式和辐射物理图像。A solution in time-space domain for reversal cerenkov radiation in left-handed medium with both negative permittivity and permeability is presented in this paper. The field distributions and direction of wave vectors and Poynting vector are discussed and some physical remarks are obtained. It is shown that particle motion in the left-handed medium with a speed faster than that of light generates power propagating backward. The formula of angle of radiated conical wave front is also worked out.

关 键 词：左手介质材料 逆切仑科夫辐射 

分 类 号：TN011[电子电信—物理电子学]