光学
涡流
磁化
法拉第效应
极化(电化学)
物理
衍射
旋涡
梁(结构)
磁场
光束
数值孔径
凝聚态物理
热力学
量子力学
物理化学
化学
波长
作者
Yunshan Jiang,Xiangping Li,Miṅ Gu
出处
期刊:Optics Letters
[The Optical Society]
日期:2013-08-05
卷期号:38 (16): 2957-2957
被引量:72
摘要
In this Letter we report on the generation of sub-diffraction-limited pure longitudinal magnetization in optomagnetic materials. The interaction between polarization singularities of cylindrically polarized beams and optical vortices in the tight focus of a high numerical-aperture objective as well as the induced magnetic fields through the inverse Faraday effect are investigated. A pure longitudinal magnetization distribution throughout the entire focal plane, which has a 15% reduction in the lateral full width at half-maximum, is achieved by tightly focusing an azimuthally polarized vortex beam.
科研通智能强力驱动
Strongly Powered by AbleSci AI