Strongly focused electromagnetic waves in E×E ∗ media
Strongly focused electromagnetic waves in E×E ∗ media
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DOI：
10.1016/j.optcom.2008.09.003
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发表时间：
2008-12
影响因子：
2.4
通讯作者：
L. Helseth
中科院分区：
文献类型：
--
作者：
L. Helseth
研究了E×E介质中强聚焦电磁波的影响，并将其与逆法拉第效应引起的矢量磁化强度分布联系起来。弱聚焦波产生沿着波传播轴的磁化矢量，而强聚焦波由于电磁场的矢量性质而导致复杂的三维磁化分布。如果使用包括与强聚焦的径向极化贝塞尔波交叉的线性极化波的双束系统，则所得到的磁化分布被限制在与具有垂直于波传播轴的方向上的磁矩的电磁波的波长相当的区域。
We investigate the impact of strongly focused electromagnetic waves in E×E∗media, and relate it to the vectorial magnetization distribution induced by the Inverse Faraday Effect. Whereas weakly focused waves generate a magnetization vector along the wave propagation axis, strongly focused waves result in complex three-dimensional magnetization distributions due to the vectorial nature of the electromagnetic field. If a two-beam system comprising of a linearly polarized wave crossing a strongly focused radially polarized Bessel wave is used, the resulting magnetization distribution is confined to a region comparable to the wavelength of the electromagnetic wave with the magnetic moment in a direction perpendicular to the wave propagation axis.