论文标题
随机光子阵列中光的共振旋转厅效应
Resonant Spin Hall Effect of Light in Random Photonic Arrays
论文作者
论文摘要
最近已经显示，在横向无序介质中传播的光的连贯成分，即所谓的相干模式，表现出光学旋转效果（SHA）。然而，在非共鸣材料中，这种现象以空间尺度显示出比平均自由路径大得多，因此由于相干模式的指数衰减，其观察力挑战。在这里，我们表明，在表现出MIE共振的无序光子阵列中，相反，如果一个人在阵列的最低横向磁共振的近距离运行，则相反，SHE的比例小于平均自由路径。结合一个弱测量，这产生了一个巨大的她，应该在光学上薄的介质中观察到。此外，我们表明，通过额外利用传入光束突然灭绝后光线的合作发射，可以实现她的时间依赖性，并且在大光学厚度也可以观察到。
It has been recently shown that the coherent component of light propagating in transversally disordered media, the so-called coherent mode, exhibits an optical spin Hall effect (SHE). In non-resonant materials, however, this phenomenon shows up at a spatial scale much larger than the mean free path, making its observation challenging due to the exponential attenuation of the coherent mode. Here, we show that in disordered photonic arrays exhibiting Mie resonances, the SHE on the contrary appears at a scale smaller than the mean free path if one operates in the close vicinity of the lowest transverse-magnetic resonance of the array. In combination with a weak measurement, this gives rise to a giant SHE that should be observable in optically-thin media. Furthermore, we show that by additionally exploiting the cooperative emission of a flash of light following the abrupt extinction of the incoming beam, one can achieve a time-dependent SHE, observable at large optical thickness as well.
