多缺陷结构的一维磁光多层膜隔离器  

One-dimensional magneto optical multi-layer film isolator with multi-defect

作　　者：温晓文[1] 李国俊[1] 仇高新[1] 李永平[1] 丁磊[2] 隋展[2] 

机构地区：[1]中国科学技术大学物理系,合肥230026 [2]中国工程物理研究院第八研究所,绵阳621900

出　　处：《物理学报》2004年第10期3571-3576,共6页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :10 3 760 3 6)资助的课题~~

摘　　要：由磁光介质 (M)和电介质 (G)周期性排列构成的磁光光子晶体会出现很强的光局域性 ,最近用它来实现磁光隔离器引起人们广泛的兴趣 .给出了一种可用于计算偏振光在各向异性介质传播问题的传输矩阵方法 .并用该方法计算了对称多缺陷结构磁光多层膜隔离器的光学性质 ,发现随着缺陷数目的增多 ,旋转角及透过率的频谱响应得到改善 .当缺陷增加到一定数目时 。Because of the localization of light, the magneto_optical (MO) photonic crystal, composed of magnetic and dielectric films periodically or quasi_periodically, can be used to manufacture the MO isolator. A transfer matrix method, suitable for computing the propagation of polarized light in anisotropic media, is described in detail in this paper. Using this method, we discuss the MO properties of a new type of MO isolator with multi_defect, and find that the spectra are broadened with increasing number of defects. A reflection_mode MO isolator without extra reflected layers is proposed when the number of defects is large enough.

关 键 词：磁光 多层膜 一维 偏振光 缺陷结构 局域性 光子晶体 光隔离器 反射型 传输矩阵 

分 类 号：O78[理学—晶体学]