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题名: Tunable terahertz plasmon in grating-gate coupled graphene with a resonant cavity
作者: Yan, B(闫博); Yang, XX(杨昕昕); Fang, JY; Huang, YD(黄永丹); Qin, H(秦华); Qin, SQ
通讯作者: Qin, H (秦华)
关键词: finite-difference-time-domain simulation ; graphene ; plasmon ; terahertz
刊名: CHINESE PHYSICS B
发表日期: 2015
DOI: 10.1088/1674-1056/24/1/015203
卷: 24, 期:1, 页:4
收录类别: SCI
部门归属: 纳米器件及相关材料研究部
英文摘要: Plasmon modes in graphene can be tuned into resonance with an incident terahertz electromagnetic wave in the range of 1-4 THz by setting a proper gate voltage. By using the finite-difference-time-domain (FDTD) method, we simulate a graphene plasmon device comprising a single-layer graphene, a metallic grating, and a terahertz cavity. The simulations suggest that the terahertz electric field can be enhanced by several times due to the grating-cavity configuration. Due to this near-field enhancement, the maximal absorption of the incident terahertz wave reaches up to about 45%.
语种: 英语
JCR小类分区: 四区
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内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/3489
Appears in Collections:纳米器件及相关材料研究部_秦华团队_期刊论文

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Recommended Citation:
Yan, B,Yang, XX,Fang, JY,et al. Tunable terahertz plasmon in grating-gate coupled graphene with a resonant cavity[J]. CHINESE PHYSICS B,2015,24(1):4.
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