Breaking the limitation of polarization multiplexing in optical metasurfaces with engineered noise
Breaking the limitation of polarization multiplexing in optical metasurfaces with engineered noise
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DOI：
10.1126/science.ade5140
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发表时间：
2023-01-20
期刊：
影响因子：
56.9
通讯作者：
Wang, Mu
中科院分区：
文献类型：
--
作者：
Xiong, Bo;Liu, Yu;Wang, Mu
噪声在科学和工程中通常是不受欢迎但又不可避免的。然而，通过将工程噪声引入到琼斯矩阵元素的精确解中，我们打破了源于琼斯矩阵尺寸约束的超表面偏振复用能力的根本限制。我们实验演示了多达11个独立的全息图像使用一个单一的超颖表面照明的可见光与不同的偏振。据我们所知，这是偏振复用的最高容量。结合位置复用方案，超表面可以生成36个不同的图像，形成全息键盘图案。这一发现为高容量光学显示、信息加密和数据存储提供了新的范例。
Noise is usually undesired yet inevitable in science and engineering. However, by introducing the engineered noise to the precise solution of Jones matrix elements, we break the fundamental limit of polarization multiplexing capacity of metasurfaces that roots from the dimension constraints of the Jones matrix. We experimentally demonstrate up to 11 independent holographic images using a single metasurface illuminated by visible light with different polarizations. To the best of our knowledge, it is the highest capacity reported for polarization multiplexing. Combining the position multiplexing scheme, the metasurface can generate 36 distinct images, forming a holographic keyboard pattern. This discovery implies a new paradigm for high-capacity optical display, information encryption, and data storage.