具有超高调幅深度的太赫兹石墨烯基可调电容超材料。

IF 23.4 Q1 OPTICS

Light-Science & Applications Pub Date : 2025-10-02 DOI:10.1038/s41377-025-02037-z

Zi-Jun Guo,Geng-Bo Wu

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引用次数: 0

摘要

通过将基板侧相抵消反射与单层石墨烯相结合，在超表面单元胞内重新配置为纳米级可调横向电容器，在固态室温条件下，以30 MHz的重新配置速度在2太赫兹左右调制超过40 dB的太赫兹幅度。该设计为高速、大动态范围太赫兹通信、实时成像和可编程光子电路提供了一个可扩展的实用平台。

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Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth.

By combining substrate-side, phase-cancelling reflection with monolayer graphene reconfigured as nanoscale tunable lateral capacitors within metasurface unit cells, terahertz amplitude modulation exceeding 40 dB at around 2 THz with 30 MHz reconfiguration speed is demonstrated under solid-state, room-temperature conditions. The design provides a scalable and practical platform for high-speed, large-dynamic-range terahertz communications, real-time imaging, and programmable photonic circuits.

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来源期刊

Light-Science & Applications 数理科学, 物理学I, 光学, 凝聚态物性 II ：电子结构、电学、磁学和光学性质, 无机非金属材料, 无机非金属类光电信息与功能材料, 工程与材料, 信息科学, 光学和光电子学, 光学和光电子材料, 非线性光学与量子光学

自引率

0.00%

发文量

803

审稿时长

2.1 months