摘要
运用传输矩阵的方法研究由法拉第旋光金属和电介质交替组成的多层膜的法拉第磁光效应。数值计算的结果显示,由于表面等离子的激励,在金属和电介质之间界面会出现很强的光局域性,法拉第旋转角和透射率在高频区都出现了共振峰。同时可通过调节多层膜的周期重叠数和法拉第旋光金属层的厚度来控制法拉第磁光特性。
The Faraday magneto-optical properties of periodic multilayer films made of alternating Faraday-active metal （M） and dielectric （D） materials are investigated. Calculations, Based on transfer matrix method, demonstrate that Fara- day magnetic-optical rotation angle exhibits several resonant peaks with considerable transmittance in high-frequency region, due to effective excitation of surface plasmon polaritons in interfaces between metal and dielectric layers. As a consequence, the Faraday magnetic-optical properties can be controlled by varying the repetition number of film struc- ture and the thickness of the magnetic layer.
出处
《科技通报》
北大核心
2012年第12期1-5,共5页
Bulletin of Science and Technology
关键词
法拉第磁光效应
多层膜
传输矩阵
表面等离子
Faraday magneto-optical effect
muhilayer films
transfer matrix
surface plasmon polaritons
