Simultaneous Realization of Dynamic and Hybrid Multiplexed Holography via Light-Activated Chiral Superstructures
Simultaneous Realization of Dynamic and Hybrid Multiplexed Holography via Light-Activated Chiral Superstructures
复制标题
DOI：
10.1002/lpor.202200011
复制
发表时间：
2022-03-17
影响因子：
11
通讯作者：
Lu, Yan-Qing
中科院分区：
文献类型：
--
作者：
Chen, Peng;Shen, Zhi-Xiong;Lu, Yan-Qing
全息技术作为一种公认的光学信息编码和提取技术，在信息量日益丰富的今天，正面临着对小型化、多功能化和可调谐性的日益增长的追求。尽管元全息已经取得了令人瞩目的成就，但同时实现动态可调谐性和高维复用是关键而滞后的，这成为这一新兴前沿的瓶颈之一。在这里，提出了一种创新的解决方案，通过整合手性液晶中的光的有限穿透深度和它们固有的刺激响应特性。基于光活性手性掺杂剂和非对称的非对称边界约束自组织，光激活的光谱可调谐，偏振和方向相关的全息图被同时创建。作为信息技术的一个很有前途的例子，展示了加密信号光，其中光的波长、传播方向、螺旋度和反应持续时间作为信息解密的定制密钥。这项工作扩展了软层次超结构的构建，为智能全息提供了一个令人满意的开放式方案，激发了先进的显示，安全和通信。
As a well-recognized technology for optical data encoding and extracting, holography has faced an ever-growing pursuit in the miniaturization, multifunctionality, and tunability for today's abundant information. Despite infusive achievements in metahologram, simultaneous realization of dynamic tunability and high-dimensional multiplexing is critical yet lagging behind, which becomes one bottleneck for this emerging frontier. Here, an innovative solution is proposed by integrating the limited penetration depth of light in chiral liquid crystals and their intrinsic stimuli-responsive characteristics. Based on a photoactive chiral dopant and the asymmetric photopatterning boundary confined self-organization, light-activated spectrally tunable, polarization- and direction-dependent holograms are created simultaneously. As a promising example for information technology, an encrypted signal light is demonstrated, where the wavelength, propagation direction, helicity of light, and reaction duration serve as customized keys for information decryption. This work extends the construction of soft hierarchical superstructures and offers a satisfactory and open-ended scheme for the intelligent holography, inspiring advanced display, security, and communication.