Impact of in-plane spread of wave vectors on spin Hall effect of light around Brewster's angle
Impact of in-plane spread of wave vectors on spin Hall effect of light around Brewster's angle
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DOI：
10.1063/1.4818816
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发表时间：
2013-08
影响因子：
4
通讯作者：
Meng-Meng Pan-Meng;Yan Li;Jin-Li Ren;Bo Wang;Yun-Feng Xiao;Hong Yang;Q. Gong
中科院分区：
文献类型：
--
作者：
Meng-Meng Pan-Meng;Yan Li;Jin-Li Ren;Bo Wang;Yun-Feng Xiao;Hong Yang;Q. Gong
本文从理论和实验上证明了当P偏振高斯光束在空气-玻璃界面上以布鲁斯特角反射时，由于光的自旋霍尔效应引起的位移不仅取决于波矢的面外扩展，而且还取决于波矢的面内扩展。波矢展宽的决定性影响表现在当入射光束的偏振或入射角稍有变化时反射光强度分布的剧烈变化。考虑到波矢在平面内的传播，实验位移数据与理论预测吻合得很好。
We theoretically and experimentally demonstrate that displacements induced by the spin Hall effect of light are determined by not only the out-plane but also the in-plane spreads of wave vectors when a P-polarized Gaussian beam reflected from an air-glass interface around the Brewster's angle. The decisive impacts of the wave vector spreads are manifested in the dramatic changes of the reflected light intensity distribution when the polarization or the incident angle of the incident beam slightly varies. The experimental displacement data agree well with the theoretical prediction by taking into account of the in-plane spread of wave-vectors.