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可见的元显示器用于防伪,具有可打印的介电元表面

Jintao Gong^1,2, Lingxing Xiong^1,2,3, Mingbo Pu^1,2,4

¹National Key Laboratory of Optical Field Manipulation Science and Technology, Chinese Academy of Sciences, Chengdu, 610209, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|February 11, 2024

概括

研究人员开发了一种新的,具有成本效益的方法,用于大规模生产可见光应用的介电元表面. 这种高通量印刷技术使先进的光学设备和具有量身定制属性的元显示器成为可能.

科学领域:

光学和光子学在光学和光子学.
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

超表面,二维纳米结构阵列,在亚波长尺度上操纵光,使光学,传感和成像中的应用成为可能.
具有特定可见光特性的介电元表面的批量生产仍然是一个重大挑战.
高效和成本效益的制造方法对于推进地表技术至关重要.

研究的目的:

为多功能介电元面提供高通量生产方法.
为了实现可见光应用的超表面的制造.
为应对量产定制介电元面的挑战.

主要方法:

使用了一步高指数TiO2-聚合物复合材料 (TPC) 打印技术.
采用一种纳米印迹光刻法 (NIL) 的变体,用于直接复制.
开发了一种使用TPC材料的印刷油墨,用于图案化表面制造.

主要成果:

经过控制的几何形状的介电元面的批量制造.
在可见光范围实现了优异的光学响应.
实现了高性能光物质相互作用.

结论:

本文介绍的TPC打印方法为大规模生产介电元面提供了一种高效且具有成本效益的解决方案.
这种技术有助于开发先进的可见光元显示器.
控制的几何和光学响应为新的光子应用铺平了道路.

关键词:

具有高面积比率的介电金属表面.具有高光折射率的TiO2聚合物复合材料.可以大规模生产的元显示器.极化-多重化信息编码.可见的元光学.

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