Krauter Philipp, Zoller Christian, Kienle Alwin
Opt Lett. 2018 Apr 15;43(8):1702-1705. doi: 10.1364/OL.43.001702.
A double anisotropic coherent backscattering cone was found. In contrast to the (single) anisotropic coherent backscattering, which was observed in liquid crystals, here, the long axis of the elongated structures changes its orientation with angular distance. We compared our results with the two-dimensional Fourier transform of spatially resolved reflectance measurements and found good agreement, which is predicted by the reciprocity thesis. Furthermore, a Monte Carlo model was applied to reproduce successfully the results of the experiment, whereas the double anisotropy is not predicted by diffusion models.
发现了一个双各向异性相干背散射锥。与在液晶中观察到的（单一）各向异性相干背散射不同，在这里，细长结构的长轴随角距离改变其方向。我们将我们的结果与空间分辨反射率测量的二维傅里叶变换进行了比较，发现吻合良好，这是互易定理所预测的。此外，应用了蒙特卡罗模型成功再现了实验结果，而扩散模型并未预测到双各向异性。
