北京理工大学王涌天团队开发出了可编程电子感应彩色路由器阵列。这一研究成果发表在2025年3月5日出版的《光：科学与应用》杂志上。

彩色路由器（CR）的发展实现了双色分量的分离，有助于调制光子动量，光子动量是频率和空间域上光学信息技术的信息载体。然而，由于光学衍射极限，具有光学刺激的CR在深亚波长尺度上缺乏对光子动量的主动控制。

研究组通过实验证明了通过电子诱导的CR在深亚波长尺度上主动操纵二色光子动量，其中CR的辐射模式是通过在单个纳米天线单元中将电子碰撞位置控制在60 nm以内来操纵的。此外，设计并实现了一种基于CR阵列可编程调制的加密显示设备。这种方法具有增强的安全性、大的信息容量和深亚波长尺度的高级集成，有望在光子器件和量子信息技术的新兴领域得到应用。

附：英文原文

Title: Programmable electron-induced color router array

Author: Chi, Cheng, Dang, Zhibo, Liu, Yongqi, Wang, Yuwei, Cheng, Dewen, Fang, Zheyu, Wang, Yongtian

Issue&Volume: 2025-03-05

Abstract: The development of color routers (CRs) realizes the splitting of dichromatic components, contributing to the modulation of photon momentum that acts as the information carrier for optical information technology on the frequency and spatial domains. However, CRs with optical stimulation lack active control of photon momentum at deep subwavelength scale because of the optical diffraction limit. Here, we experimentally demonstrate an active manipulation of dichromatic photon momentum at a deep subwavelength scale via electron-induced CRs, where the CRs radiation patterns are manipulated by steering the electron impact position within 60nm in a single nanoantenna unit. Moreover, an encrypted display device based on programmable modulation of the CR array is designed and implemented. This approach with enhanced security, large information capacity, and high-level integration at a deep subwavelength scale may find applications in photonic devices and emerging areas in quantum information technologies.

DOI: 10.1038/s41377-024-01712-x

Source: https://www.nature.com/articles/s41377-024-01712-x