电磁波在Bethe晶格网络中的输运性质  

The Transmission Properties of Electromagnetic Wave in Bethe Lattices

作　　者：林志萍[1] 姚源卫[1] 张欣[1] 

机构地区：[1]广东工业大学物理与光电工程学院,广东广州510090

出　　处：《广东工业大学学报》2008年第1期5-10,共6页Journal of Guangdong University of Technology

基　　金：广东省自然科学基金资助项目(6300237);广东工业大学青年科学基金资助项目(062045)

摘　　要：采用广义本征函数方法（GEM），研究了电磁波在一维波导组成的Bethe晶格网络的输运性质．考虑了衰减和出口数对电磁波输运行为的影响，从数值上计算了频率在0～500MHz时第一代到第五代的透射系数和频率的关系．采用二维图展示所有的数值结果，并且对电磁波在网络中输运所产生的离散本征模和相应的光带隙进行了详细的观察和讨论．The photonic transmission properties of Bethe lattices network made of one-dimensional waveguides are studied with the generalized eigen-function method. Considering the absence or presence of dissipation and different exit situations, the transmission coefficient is numerically calculated as a function of frequency in the range 0 - 500 MHz for the first five generations of Bethe lattices. The results are shown by the two-dimensional plots. The evolution of discrete eigen-mode and the corresponding photonic band gap are observed and discussed in detail.

关 键 词：电磁波 广义本征函数方法 Bethe晶格网络 

分 类 号：O482.4[理学—固体物理]