隔离器
太赫兹辐射
材料科学
光隔离器
光电子学
光学
石墨烯
消光比
微波食品加热
插入损耗
物理
光纤
电气工程
波长
量子力学
工程类
纳米技术
作者
Pankaj Kumar,Smriti Rai,Somak Bhattacharyya,Akhlesh Lakhtakia,P. K. Jain
出处
期刊:Optical Engineering
[SPIE - International Society for Optical Engineering]
日期:2020-11-13
卷期号:59 (11)
被引量:4
标识
DOI:10.1117/1.oe.59.11.110501
摘要
A graphene-sandwich metasurface for electrically controlled operation as a frequency shifter, a reciprocal switch, and a bidirectional isolator in the terahertz spectral regime was simulated using CST Microwave Studio™ 2019 software. The metasurface is a biperiodic array of identical meta-atoms, each of which comprises a silicon layer with a graphene patch on each of its two faces. The polarization-insensitive metasurface has ∼15 dB isolation loss as well as ∼15 dB extinction ratio and can be controlled to function over a wide frequency range.
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