Dual plasmon-induced transparency and slow light effect in monolayer graphene structure with rectangular defects

2018 ◽  
Vol 52 (2) ◽  
pp. 025104 ◽  
Author(s):  
Hui Xu ◽  
Mingzhuo Zhao ◽  
Mingfei Zheng ◽  
Cuixiu Xiong ◽  
Baihui Zhang ◽  
...  
Keyword(s):  
Slow Light ◽  
Monolayer Graphene ◽  
Light Effect ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Dynamically controllable multi-switch and slow light based on a pyramid-shaped monolayer graphene metamaterial

2021 ◽  
Vol 23 (6) ◽  
pp. 3949-3962
Author(s):  
Cuixiu Xiong ◽  
Liu Chao ◽  
Biao Zeng ◽  
Kuan Wu ◽  
Min Li ◽  
...  
Keyword(s):  
Slow Light ◽  
Monolayer Graphene ◽  
Light Effect ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

We can achieve a tunable multi-switch and good slow light effect based on the quadruple plasmon induced transparency effect in a five-step-coupled pyramid-shaped monolayer graphene metamaterial.

scholarly journals Tunable slow light effect based on dual plasmon induced transparency in terahertz planar patterned graphene structure

2019 ◽  
Vol 15 ◽  
pp. 102796
Author(s):  
Mingzhuo Zhao ◽  
Hui Xu ◽  
Cuixiu Xiong ◽  
Baihui Zhang ◽  
Chao Liu ◽  
...  
Keyword(s):  
Slow Light ◽  
Light Effect ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Dual coupled-resonator system for plasmon-induced transparency and slow light effect

2016 ◽  
Vol 380 ◽  
pp. 95-100 ◽  
Author(s):  
Qinghao Wang ◽  
Hongyun Meng ◽  
Ben Huang ◽  
Huihao Wang ◽  
Xing Zhang ◽  
...  
Keyword(s):  
Slow Light ◽  
Light Effect ◽  
Resonator System ◽  
Induced Transparency ◽  
Coupled Resonator ◽  
Plasmon Induced Transparency

scholarly journals Tunable Graphene-Based Plasmon-Induced Transparency Based on Edge Mode in the Mid-Infrared Region

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 448 ◽  
Author(s):  
Heng Xu ◽  
Zhaojian Zhang ◽  
Shangwu Wang ◽  
Yun Liu ◽  
Jingjing Zhang ◽  
...  
Keyword(s):  
Slow Light ◽  
Incident Angle ◽  
Transparency Window ◽  
Monolayer Graphene ◽  
Geometrical Parameters ◽  
Edge Mode ◽  
Mid Infrared ◽  
Transmission Amplitude ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

A monolayer-graphene-based concentric-double-rings (CDR) structure is reported to achieve broadband plasmon-induced transparency (PIT) on the strength of edge mode in the mid-infrared regime. The theoretical analysis and simulation results reveal that the structure designed here has two plasmonic resonance peaks at 39.1 and 55.4 THz, and a transparency window with high transmission amplitude at the frequency of 44.1 THz. Based on the edge mode coupling between neighbor graphene ribbons, PIT phenomenon is produced through the interference between different (bright and dark) modes. The frequency and bandwidth of the transparency window and slow light time could be effectively adjusted and controlled via changing geometrical parameters of graphene or applying different gate voltages. Additionally, this structure is insensitive to the polarization and incident angle. This work has potential application on the optical switches and slow light modulators.

Slow light effect based on tunable plasmon-induced transparency of monolayer black phosphorus

2019 ◽  
Vol 52 (40) ◽  
pp. 405203 ◽  
Author(s):  
Chao Liu ◽  
Hongjian Li ◽  
Hui Xu ◽  
Mingzhuo Zhao ◽  
Cuixiu Xiong ◽  
...  
Keyword(s):  
Slow Light ◽  
Black Phosphorus ◽  
Light Effect ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Investigation of tunable plasmon-induced transparency and slow-light effect based on graphene bands

2018 ◽  
Vol 11 (8) ◽  
pp. 082002 ◽  
Author(s):  
Mingzhuo Zhao ◽  
Hui Xu ◽  
Cuixiu Xiong ◽  
Mingfei Zheng ◽  
Baihui Zhang ◽  
...  
Keyword(s):  
Slow Light ◽  
Light Effect ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Tunable dual plasmon-induced transparency and slow-light analysis based on monolayer patterned graphene metamaterial

2022 ◽  
Author(s):  
Pengju Yao ◽  
Biao Zeng ◽  
Enduo Gao ◽  
Hao Zhang ◽  
Chao Liu ◽  
...  
Keyword(s):  
Absorption Rate ◽  
Slow Light ◽  
Monolayer Graphene ◽  
Destructive Interference ◽  
Group Index ◽  
Coupled Mode ◽  
External Bias ◽  
Internal Mechanism ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Abstract We propose a novel terahertz metamaterial structure based on patterned monolayer graphene. This structure produces an evident dual plasmon-induced transparency (PIT) phenomenon due to destructive interference between bright and dark modes. Since the Fermi level of graphene can be adjusted by an external bias voltage, the PIT phenomenon can be tuned by adjusting the voltage. Then the coupled-mode theory (CMT) is introduced to explore the internal mechanism of the PIT. After that, we investigate the variation of absorption rate at different graphene carrier mobilities, and it shows that the absorption rate of this structure can reach 50%, which is a guideline for the realization of graphene terahertz absorption devices. In addition, through the study of the slow-light performance for this structure, it is found that its group index is as high as 928, which provides a specific theoretical basis for the study of graphene slow-light devices.

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