Customizing the Angular Memory Effect for Scattering Media

Customizing the Angular Memory Effect for Scattering Media
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自定义散射介质的角度记忆效应

DOI:
10.1103/physrevx.11.031010
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发表时间:
2021
期刊:
影响因子:
12.5
通讯作者:
Cao, Hui
Cao, Hui
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Yılmaz, Hasan;Kühmayer, Matthias;Hsu, Chia Wei;Rotter, Stefan;Cao, Hui

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无序系统中的记忆效应是一种关键的物理现象,已被用于光学成像,计量和通过不透明介质的通信。在传统的记忆效应下,当入射光束稍微倾斜时,透射图案沿相同方向倾斜。然而,“记忆”在其角度范围和倾斜方向上是有限的。在这里,我们提出了一个通用的方法来定制的记忆效果,通过引入一个角度记忆操作。它的本征态具有完美的相关性的倾斜角度和方向,可以任意选择分别为入射和透射波,并可以很容易地实现与波前整形。这项工作揭示了波前整形在创建任何所需的存储器的经典和量子波在复杂系统中的应用的力量。
The memory effect in disordered systems is a key physical phenomenon that has been employed for optical imaging, metrology, and communication through opaque media. Under the conventional memory effect, when the incident beam is tilted slightly, the transmitted pattern tilts in the same direction. However, the “memory” is limited in its angular range and tilt direction. Here, we present a general approach to customize the memory effect by introducing an angular memory operator. Its eigenstates possess perfect correlation for tilt angles and directions that can be arbitrarily chosen separately for the incident and transmitted waves, and can be readily realized with wave front shaping. This work reveals the power of wave front shaping in creating any desired memory for applications of classical and quantum waves in complex systems.
DOI: 10.1364/ol.44.005997
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影响因子: 3.6
作者:
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