Modulating quantum fluctuations of scattered light in disordered media via wavefront shaping
Modulating quantum fluctuations of scattered light in disordered media via wavefront shaping
复制标题
通过波前整形调制无序介质中散射光的量子涨落
DOI：
10.1364/josab.36.003290
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发表时间：
2019-12-01
影响因子：
1.9
通讯作者：
Yao, Yao
中科院分区：
文献类型：
--
作者：
Li, Dong;Yao, Yao
正交压缩光在无序介质中多次散射后，散射模的正交幅值呈现出高于单噪声级的多余噪声[j].光学学报，2006,OPEXFF1094-408710.1364/OE.14.006919。一个自然的问题是，是否存在一种方法来抑制输出模式的正交波动。答案是肯定的。在这项工作中，我们证明了波前整形是一种很有前途的方法，可以降低散射模式正交振幅的平均量子噪声。这种减少是由于量子噪声的破坏性干涉。具体来说，当考虑单模压缩态作为输入时，平均量子涨落总是可以降低，甚至低于短噪声水平。这些结果可能在量子信息处理中有潜在的应用，例如，利用压缩态源散射超透镜进行亚波长成像。
After multiple scattering of quadrature-squeezed light in a disordered medium, the quadrature amplitudes of the scattered modes present excess noise above the shot-noise level [Opt. Express14, 6919 (2006)OPEXFF1094-408710.1364/OE.14.006919]. A natural question is raised as to whether there exists a method of suppressing the quadrature fluctuation of the output mode. The answer is affirmative. In this work, we prove that wavefront shaping is a promising method to reduce the averaged quantum noise of quadrature amplitudes of the scattered modes. This reduction is owing to the destructive interference of quantum noise. Specifically, when the single-mode squeezed states are considered as inputs, the averaged quantum fluctuation can always be reduced, even below the shot-noise level. These results may have potential applications in quantum information processing, e.g., sub-wavelength imaging using the scattering superlens with squeezed-state sources.