论文标题
仅相位全息辅助平面印刷，用于大量多重光学显示和加密
Phase-Only Holographic Assisted Planar Printing for Massively Multiplexed Optical Display and Encryption
论文作者
论文摘要
由单层或几层微型和纳米光学平台制成的多路复用平面打印对于高容量显示，信息存储和加密至关重要。尽管发展迅速，但演示的渠道仍然有限，也缺乏即时性。在这里，通过我们建议的角度多重框架将全息图和印刷始终视为具有完全不同原理的两个独立信息编码域，从而导致具有数百个通道的多重打印件。基于这种方法，我们通过实验将25个灰度打印件分别分为25个角度，甚至将8个灰度视频分为8个角度，并使用仅相位的空间光调节器。作为印刷和全息图之间的桥梁，我们的方法允许生成结合各种全息方法的打印。从中有益，我们演示了一个基于梯度跨表面的324通道打印，该通道印刷同时多样地将角度，极化和波长多样化。我们的工作为灵活角度依赖的打印显示和大量多重加密系统铺平了道路。
Multiplexed planar printings, made of single or few layer micro and nano optical platforms, are essential for high capacity display, information storage and encryption. Although having been developed rapidly, the demonstrated channels are still limited and also lack instantaneity. Here, holograms and printings, always regarded as two independent information coding domains with totally different principles, are combined together through our proposed angle multiplexing framework, leading to multiplexed printings with hundreds of channels. Based on such approach, we experimentally encode respectively 25 gray scale printings into 25 angles and even 8 gray scale videos into 8 angles with a phase-only spatial light modulator. As a bridge between printings and holograms, our method allows to generate printings combining various holographic methods. Beneficial from this, we demonstrate a gradient metasurface based 324 channel printing which multiplexes angles, polarizations and wavelengths simultaneously. Our work paves the way to flexibly angle-dependent printing display and massively multiplexed encryption systems.
