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在水凝元格中光学加密连续体中的动态和偏振依赖的绑定状态

Jiao Tang, Hanyu He, Junjie Yan

|November 11, 2025

概括

研究人员开发了一种新的以水分驱动的水凝元网格,用于可见光应用,以动态调整连续 (quasi-BIC) 中的准束状态. 这一突破使先进的光学加密和可切换的元表面能够快速,可逆地控制.

科学领域:

光子学和元材料研究
轻物质相互作用轻物质相互作用
光学工程是指光学工程.

背景情况:

连续体中的边界状态 (BIC) 提供了对光物质相互作用的精确控制.
可见光谱中BIC和准BIC共振的动态调制是很困难的,特别是对于快速,可逆,大面积和精确的调.

研究的目的:

提出一种基于湿度的新调策略,用于动态调制准BIC共振.
为了证明在可见光应用和光学加密中使用基于水凝的元网格的使用.

主要方法:

使用过的基于水凝 (聚乙醇,PVA) 的元格.
利用水凝的适应湿度的胀行为来诱导可逆的平面外对称性破坏.
通过精确的高度调制和偏振选择性激活,实现了BIC-to-quasi-BIC过渡的积极控制.

主要成果:

在可见光中使用以水分为驱动的策略,证明了准BIC的动态调制.
在PVA水凝元网格中展示了可逆的外平面对称性破坏.
启用了准BIC共振的偏振选择激活,用于加密图像的动态调制.

结论:

湿度驱动的调整策略为动态,可切换的光学功能提供了一个实用和多功能平台.
开发了用于光学加密的高隐藏效率的活跃准-BIC元表面.
在实现BIC共振的快速,可逆,大面积和精确调方面克服了挑战.

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