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引用次数: 0
摘要
作为一种新兴的显示、加密和信息存储平台,双向非对称传输(BAT)元设备已引起广泛关注。一般来说,BAT 元设备的复用能力决定了多任务集成系统的负载能力上限。然而,现有的 BAT 元器件仍然依赖于元原子的结构特性和排列方式,从而限制了可操作通道的数量、工作频率和偏振组合。本文提出了一种通用的 BAT 元器件,由双层空间级联双折射元表面(BM)组成,可实现双向八相信道非对称传输,通过逆设计方法实现任意极化组合,并在微波区域进行了验证。此外,还通过类似乐高的物理机制进一步扩展了 BAT 元器件的极化复用能力。所提出的设计策略可促进 BAT 元器件在全息图像、双工通信和密钥共享数据加密方面的功能创新和高级应用部署。
Full-Phase Parameter Modulation with Arbitrary Polarization Combination via Bidirectional Asymmetric Transmission Meta-Devices
The bidirectional asymmetric transmission (BAT) meta-devices have attracted widespread attention as an emerging display, encryption, and information storage platform. Generally, the multiplexing capability of BAT meta-devices determines the upper limit of the loading capacity of multi-task integrated systems. However, existing BAT meta-devices still depend on structural properties and the arrangement of meta-atoms, limiting the number of manipulated channels, operating frequency, and polarization combinations. Herein, a universal BAT meta-device, enabling bidirectional eight-phase-channel asymmetric transmission, composed of bilayer spatially cascaded birefringent metasurfaces (BMs) is proposed to allow for arbitrary polarization combination via the inverse design method and validated in the microwave region. In addition, the polarization multiplexing capabilities of BAT meta-devices are further extended via a Lego-like physical mechanism. The proposed design strategy may facilitate BAT meta-devices functional innovation and advanced application deployment in holographic images, duplex communication, and secret-key-sharing data encryption.
期刊介绍:
Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications.
As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics.
The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.