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.
Abstract：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.
ZHUANG You-Yi;ZHANG Yao-Ju. Improving Recording Density of All-Optical Magnetic Storage by Using High-Pass Angular Spectrum Filters[J]. 中国物理快报, 2009, 26(10): 108501-108501.
ZHUANG You-Yi, ZHANG Yao-Ju. Improving Recording Density of All-Optical Magnetic Storage by Using High-Pass Angular Spectrum Filters. Chin. Phys. Lett., 2009, 26(10): 108501-108501.
2009, Vol. 26 
