Improving Recording Density of All-Optical Magnetic Storage by Using High-Pass Angular Spectrum Filters  

作　　者：庄友谊 张耀举 

机构地区：[1]College of Physics and Electronic Information, Wenzhou University, Wenzhou 325035

出　　处：《Chinese Physics Letters》2009年第10期209-211,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 60777005.

摘　　要：A new design is presented to improve the magnetic recording density in all-optical magnetic storage. By using the high numerical lens with a high-pass angular spectrum filter, circularly polarized laser pulses are focused into the magneto-optic film with the perpendicular anisotropy. Magnetization of the film is induced by the inverse Faraday effect. As the obstructed angle of the filter increases the magnetic recording density increases evidently. The magnetization intensity and the sidelobe effect are also discussed.A new design is presented to improve the magnetic recording density in all-optical magnetic storage. By using the high numerical lens with a high-pass angular spectrum filter, circularly polarized laser pulses are focused into the magneto-optic film with the perpendicular anisotropy. Magnetization of the film is induced by the inverse Faraday effect. As the obstructed angle of the filter increases the magnetic recording density increases evidently. The magnetization intensity and the sidelobe effect are also discussed.

关 键 词：sea surface nonliear interaction numerical method 

分 类 号：TN713.4[电子电信—电路与系统] TN646