Abstract Structural color with polarization sensitivity has been widely studied due to its benefits for improving information storage and dynamic color display capacity. However, large amount and good concealment of information encoding are the major issues to be addressed. Here, we propose the elliptical Al/a-Si/Al (metal-insulator-metal, MIM) nanostructure arrays as the basic building blocks to realize polarization-sensitive subtractive structural colors for information encoding, and dynamic polarization-resolved displays. The experimentally realized structural color exhibits a wide color gamut covering the whole cyan, magenta, and yellow (CMY) color system, and presents a strong dependence on the incident polarization state due to its shape anisotropy. A new approach to improve the information encoding capacity is demonstrated using this structure combined with the polarization-independent nanostructures, increasing the concealment of information. Additionally, the polarization controllable dynamic display is engineered by the well-designed pixels with respect to different polarizations, generating the animation effect. These intrinsic properties and functionalities of the proposed structural color significantly extend its potential to the fields of information encoding, security encryption, and dynamic displays, not limited to color printing and filtering devices.

中文翻译：

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用于信息编码和动态显示的偏振敏感减色结构色

摘要 具有偏振敏感性的结构色因其在提高信息存储和动态彩色显示能力方面的优势而被广泛研究。然而，信息编码量大、隐蔽性好是需要解决的主要问题。在这里，我们提出椭圆形 Al/a-Si/Al（金属-绝缘体-金属，MIM）纳米结构阵列作为基本构建块，以实现用于信息编码和动态偏振分辨显示的偏振敏感减色结构颜色。实验实现的结构色表现出覆盖整个青色、品红色和黄色 (CMY) 颜色系统的宽色域，并且由于其形状各向异性而表现出对入射偏振态的强烈依赖性。使用这种结构与极化无关的纳米结构相结合，证明了一种提高信息编码能力的新方法，增加了信息的隐蔽性。此外，偏振可控动态显示由针对不同偏振精心设计的像素进行设计，产生动画效果。所提出的结构色的这些内在特性和功能显着地将其潜力扩展到信息编码、安全加密和动态显示领域，而不仅限于彩色印刷和过滤设备。偏振可控动态显示由精心设计的像素针对不同的偏振进行设计，产生动画效果。所提出的结构色的这些内在特性和功能显着地将其潜力扩展到信息编码、安全加密和动态显示领域，而不仅限于彩色印刷和过滤设备。偏振可控动态显示由精心设计的像素针对不同的偏振进行设计，产生动画效果。所提出的结构色的这些内在特性和功能显着地将其潜力扩展到信息编码、安全加密和动态显示领域，而不仅限于彩色印刷和过滤设备。