scholarly journals Power transmission and group delay in gain-assisted plasmon-induced transparency

AIP Advances ◽  
2013 ◽  
Vol 3 (3) ◽  
pp. 032138 ◽  
Author(s):  
Zi-Lan Deng ◽  
Jian-Wen Dong ◽  
He-Zhou Wang ◽  
S. H. Cheng ◽  
Jensen Li
Keyword(s):  
Group Delay ◽  
Power Transmission ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

scholarly journals Tunable Plasmon-Induced Transparency through Bright Mode Resonator in a Metal–Graphene Terahertz Metamaterial

2020 ◽  
Vol 10 (16) ◽  
pp. 5550
Author(s):  
Guanqi Wang ◽  
Xianbin Zhang ◽  
Xuyan Wei
Keyword(s):  
Group Delay ◽  
Monolayer Graphene ◽  
Device Structure ◽  
Coupling Condition ◽  
Conductive Film ◽  
Induced Transparency ◽  
Bright Mode ◽  
Mode Resonator ◽  
The Ideal ◽  
Plasmon Induced Transparency

The combination of graphene and metamaterials is the ideal route to achieve active control of the electromagnetic wave in the terahertz (THz) regime. Here, the tunable plasmon-induced transparency (PIT) metamaterial, integrating metal resonators with tunable graphene, is numerically investigated at THz frequencies. By varying the Fermi energy of graphene, the reconfigurable coupling condition is actively modulated and continuous manipulation of the metamaterial resonance intensity is achieved. In this device structure, monolayer graphene operates as a tunable conductive film which yields actively controlled PIT behavior and the accompanied group delay. This device concept provides theoretical guidance to design compact terahertz modulation devices.

Tunable Terahertz Plasmon-Induced Transparency in Resonator-Coupled Dirac Semimetal Waveguides

2021 ◽  
Vol 36 (6) ◽  
pp. 676-683
Author(s):  
Daobin Wang ◽  
Jiahuan Yang ◽  
Wei Wang ◽  
Lihua Yuan ◽  
Xiaoxiao Li
Keyword(s):  
Optical Properties ◽  
Fermi Energy ◽  
Delay Time ◽  
Group Delay ◽  
The Finite Element Method ◽  
Group Delay Time ◽  
Dirac Semimetal ◽  
Induced Transparency ◽  
Maximum Group ◽  
Plasmon Induced Transparency

The bulk Dirac semimetal (BDS) is an interesting material, similar to graphene, which can dynamically adjust its optical properties via a variation in its Fermi energy or electrical voltage. In this work, a BDS-based plasmonic device, which enables tunable terahertz plasmon-induced transparency, was proposed and designed. By using the finite element method, the surface plasmon polariton and plasmon-induced transparency of this device were systematically investigated. The results demonstrate that the plasmon-induced transparency of such device can be dynamically tuned by varying its Fermi energy. When the Fermi energy changes from 55 meV to 95 meV, the maximum group delay time of the device increases from 13.2 ps to 21 ps. In the case of a cascading device, the maximum group delay time can be further pushed up to 44.57 ps. The influence of the ambient refractive index on the optical properties of the proposed device was also considered and investigated.

scholarly journals Demonstration of group delay above 40 ps at terahertz plasmon-induced transparency windows

2019 ◽  
Vol 27 (19) ◽  
pp. 26459 ◽  
Author(s):  
Zhenyu Zhao ◽  
Hui Zhao ◽  
Rajour Tanyi Ako ◽  
Jianbing Zhang ◽  
Hongwei Zhao ◽  
...  
Keyword(s):  
Group Delay ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Ultrasensitive and Tunable Sensor Based on Plasmon-Induced Transparency in a Black Phosphorus Metasurface

Plasmonics ◽  
2021 ◽  
Author(s):  
Hao Chen ◽  
Lei Xiong ◽  
Fangrong Hu ◽  
Yuanjiang Xiang ◽  
Xiaoyu Dai ◽  
...  
Keyword(s):  
Black Phosphorus ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

Tunable Plasmon Induced Transparency in a Metallodielectric Grating Coupled With Graphene Metamaterials

2017 ◽  
Vol 35 (23) ◽  
pp. 5142-5149 ◽  
Author(s):  
Tian Zhang ◽  
Jian Dai ◽  
Yitang Dai ◽  
Yuting Fan ◽  
Xu Han ◽  
...  
Keyword(s):  
Induced Transparency ◽  
Plasmon Induced Transparency
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