Triple plasmon-induced transparency and outstanding slow-light in quasi-continuous monolayer graphene structure

2020 ◽  
Vol 64 (2) ◽  
Author(s):  
CuiXiu Xiong ◽  
Hui Xu ◽  
MingZhuo Zhao ◽  
BaiHui Zhang ◽  
Chao Liu ◽  
...  
Keyword(s):  
Slow Light ◽  
Monolayer Graphene ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

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

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.

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.

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.

Plasmon-Induced Transparency and Dispersionless Slow Light in a Novel Metamaterial

2015 ◽  
Vol 27 (11) ◽  
pp. 1177-1180 ◽  
Author(s):  
Jiakun Song ◽  
Jietao Liu ◽  
Yuzhi Song ◽  
Kangwen Li ◽  
Zuyin Zhang ◽  
...  
Keyword(s):  
Slow Light ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Slow-light analysis based on tunable plasmon-induced transparency in patterned black phosphorus metamaterial

2021 ◽  
Vol 38 (3) ◽  
pp. 412
Author(s):  
Kuan Wu ◽  
Hongjian Li ◽  
Chao Liu ◽  
Cuixiu Xiong ◽  
Banxian Ruan ◽  
...  
Keyword(s):  
Slow Light ◽  
Black Phosphorus ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

scholarly journals Dual-Mode On-to-Off Modulation of Plasmon-Induced Transparency and Coupling Effect in Patterned Graphene-Based Terahertz Metasurface

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Zhimin Liu ◽  
Enduo Gao ◽  
Zhenbin Zhang ◽  
Hongjian Li ◽  
Hui Xu ◽  
...  
Keyword(s):  
Slow Light ◽  
Coupling Effect ◽  
Structural Parameters ◽  
Fdtd Simulation ◽  
Destructive Interference ◽  
Dual Mode ◽  
Coupled Mode ◽  
Induced Transparency ◽  
Difference Time ◽  
Plasmon Induced Transparency

AbstractThe plasmon-induced transparency (PIT), which is destructive interference between the superradiation mode and the subradiation mode, is studied in patterned graphene-based terahertz metasurface composed of graphene ribbons and graphene strips. As the results of finite-difference time-domain (FDTD) simulation and coupled-mode theory (CMT) fitting, the PIT can be dynamically modulated by the dual-mode. The left (right) transmission dip is mainly tailored by the gate voltage applied to graphene ribbons (stripes), respectively, meaning a dual-mode on-to-off modulator is realized. Surprisingly, an absorbance of 50% and slow-light property of 0.7 ps are also achieved, demonstrating the proposed PIT metasurface has important applications in absorption and slow-light. In addition, coupling effects between the graphene ribbons and the graphene strips in PIT metasurface with different structural parameters also are studied in detail. Thus, the proposed structure provides a new basis for the dual-mode on-to-off multi-function modulators.

Wideband slow light based on plasmon-induced transparency at telecom frequency

2015 ◽  
Vol 351 ◽  
pp. 26-29 ◽  
Author(s):  
Chunlei Li ◽  
Dawei Qi ◽  
Yuxiao Wang ◽  
Xueru Zhang
Keyword(s):  
Slow Light ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

scholarly journals Active Enhancement of Slow Light Based on Plasmon-Induced Transparency with Gain Materials

Materials ◽  
2018 ◽  
Vol 11 (6) ◽  
pp. 941 ◽  
Author(s):  
Zhaojian Zhang ◽  
Junbo Yang ◽  
Xin He ◽  
Yunxin Han ◽  
Jingjing Zhang ◽  
...  
Keyword(s):  
Slow Light ◽  
Induced Transparency ◽  
Active Enhancement ◽  
Plasmon Induced Transparency

Gain-assisted plasmon induced transparency in T-shaped metamaterials for slow light

2015 ◽  
Vol 17 (5) ◽  
pp. 055002 ◽  
Author(s):  
Jinna He ◽  
Junqiao Wang ◽  
Pei Ding ◽  
Chunzhen Fan ◽  
Erjun Liang
Keyword(s):  
Slow Light ◽  
Induced Transparency ◽  
Plasmon Induced Transparency
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