Magnetic-field effects on coherent backscattering of light in case of Mie spheres
Magnetic-field effects on coherent backscattering of light in case of Mie spheres
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DOI：
10.1209/epl/i2000-00483-y
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发表时间：
2000-12
期刊：
影响因子：
1.8
通讯作者：
R. Lenke;R. Lehner;G. Maret
中科院分区：
文献类型：
--
作者：
R. Lenke;R. Lehner;G. Maret
磁光法拉第旋转破坏了弹性多重散射光的相干后向散射增强。此外，法拉第旋转已经被预测，特别是对于Mie散射，导致相干后向散射锥在圆偏振光的情况下偏离确切的后向散射方向，或者在线性偏振的情况下出现双峰(见Lenke R., Maret G. 2000 Eur。理论物理。[b] 17（171）。在这封信中，我们报告了这些预测的第一次实验观察。此外，我们还发现了一个意想不到的反向散射强度的横向不对称性，即垂直于外磁场和垂直于入射光方向的不对称光子通量。
Magneto-optical Faraday rotation destroys the coherent backscattering enhancement of elastically multiple scattered light. In addition, Faraday rotation has been predicted, especially for Mie scattering, to cause a shift of the coherent backscattering cone off the exact backscattering direction in case of circular polarized light, or a twin peak in case of linear polarization (see Lenke R., Maret G. 2000 Eur. Phys. J. B 17 171). In this letter we report the first experimental observations of these predictions. Moreover, we have observed an unexpected transversal asymmetry in the backscattered intensity, i.e. an asymmetric photon flux perpendicular to the external magnetic field and perpendicular to the direction of the incident light.