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极化编码的彩色图像用于信息加密,由HfN耐火等离子体元表面启用

Yu-Cheng Chu^1,2, Tzu-Yu Peng^1,2, Chen-Yu Wang^1,2

¹Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan.

Nanophotonics (Berlin, Germany)

|December 22, 2025

概括

耐火的化 (HfN) 超表面使强大的,极化编码的彩色图像用于光学加密. 这些等离子纳米结构提供类似黄金的光学特性和卓越的热稳定性,用于安全的防伪应用.

科学领域:

纳米光子学纳米光子学
材料科学材料科学材料科学
信息安全信息安全

背景情况:

等离子纳米结构为纳米级应用操纵光物质相互作用.
极化编码的彩色图像对于光学加密和防伪至关重要.
传统的等离子体材料 (Au,Ag) 对于坚固的设备缺乏热稳定性.

研究的目的:

为极化编码彩色图像开发一个耐热的等离子平台.
为了利用耐火的化 (HfN) 超表面进行先进的光学加密.
为了证明HfN对CMOS兼容的高温纳米光子设备的潜力.

主要方法:

制造周期性图案的HfN纳米天线.
在极化光下对局部表面等离子体共振 (LSPRs) 的表征.
使用HfN元表面设计和实现一个极化编码的彩色图像.

主要成果:

HfN纳米天线在628和564nm处表现出LSPRs,可通过直角偏振激发.
成功创建了一个极化编码的彩色图像,在特定的极化照明下揭示隐藏的信息.
不极化照明隐藏了消息,展示了强大的光学加密能力.
在高温回火后,HfN元表面保留了等离子体反应.

结论:

HfN等离子纳米结构提供一种独特的金像光学特性和特殊的热强度的组合.
这种材料平台适用于下一代纳米光子,可实现安全的数据加密和防伪.
基于HfN的热弹性超表面对极端环境中的应用和安全的光学信息充满希望.

关键词:

图像加密图像加密 metasurfaces 是一个地表.塑色彩的颜色塑色彩的颜色两极分化的编码.耐火等离子体材料是什么过渡金属化物过渡金属化物

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