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Hybrid metal-graphene terahertz optoelectronic system with tunable plasmonic resonance and method of fabrication

机译：具有可调等离子体共振的混合金属-石墨烯太赫兹光电系统及其制造方法

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摘要

A new approach to graphene-enabled plasmonic resonant structures in the THz is demonstrated in a hybrid graphene-metal design in which the graphene acts as a gate-tunable inductor, and metal acts as a capacitive reservoir for charge accumulation. A large resonant absorption in graphene can be achieved using the metal-graphene plasmonic scheme, and the peak can approach 100% in an optimized device, ideal for graphene-based THz detectors. Using high mobility graphene (μ50000 cm²V⁻¹s⁻¹) will allow anomalously high resonant THz transmission (near 100%) through ultra-subwavelength graphene-filled metallic apertures at a resonance frequency that is gate tunable. This metal-graphene plasmonic scheme enables near perfect tunable THz filter or modulator.

机译：在混合石墨烯-金属设计中展示了一种在太赫兹中启用石墨烯的等离子体共振结构的新方法，其中石墨烯充当栅极可调电感器，而金属充当电荷积累的电容性储层。使用金属-石墨烯等离激元方案可以在石墨烯中实现大的共振吸收，并且在优化的设备中峰值可以接近100％，非常适合基于石墨烯的太赫兹检测器。使用高迁移率石墨烯（μ> 50000 cm ^{2 V ^{−1 s ^{−1 ）将允许异常高的共振THz传输（接近100％）通过超亚波长填充石墨烯的金属孔，其共振频率是可调节的。这种金属-石墨烯等离子体方案可实现接近完美的可调THz滤波器或调制器。}}}

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公开/公告号US10672933B2

专利类型
公开/公告日2020-06-02

原文格式PDF
申请/专利权人 UNIVERSITY OF MARYLAND COLLEGE PARK;
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申请/专利号US201615735662
发明设计人 MOHAMMAD M. JADIDI;ANDREI B. SUSHKOV;DAVID KURT GASKILL;MICHAEL FUHRER;HOWARD DENNIS DREW;THOMAS E. MURPHY;
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申请日2016-06-14
分类号H01L31/09;H01G9/20;G01N21/3581;G01N21/25;
国家 US
入库时间 2022-08-21 11:27:59

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