arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1701.02487physics.optics
收藏

石墨烯包覆纳米线可调隐身技术

Tunable invisibility cloaking by using graphene-coated nanowires

Mahin Naserpour, Carlos J. Zapata-Rodriguez, Slobodan M. Vukovic, Milivoj R. Belic

摘要:

我们从理论和数值两方面研究了太赫兹频率范围内的平面电磁波照射石墨烯涂层纳米柱的情况。我们已经推导出一个解析公式,使快速评估的光谱窗口与散射效率充分薄的圆柱体的大幅减少。这种效应导致可调谐的谐振不可见性,其可以通过由栅极电压监测的石墨烯化学势的修改来实现。本文还讨论了基于二聚体包覆纳米线的多频隐身机制。

英文摘要:

We investigate, both theoretically and numerically, a graphene-coated nano-cylinder illuminated by a plane electromagnetic wave in THz range of frequencies. We have derived an analytical formula that enables fast evaluation of the spectral window with a substantial reduction in scattering efficiency for sufficiently thin cylinder. This effect leads to tunable resonant invisibility that can be achieved via modification of graphene chemical potential monitored by the gate voltage. A multi-frequency cloaking mechanism based on dimer coated nanowires is also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑