scholarly journals Dynamically Tunable Plasmon-Induced Transparency Based on Radiative–Radiative-Coupling in a Terahertz Metal–Graphene Metamaterial

Crystals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 146 ◽  
Author(s):  
Guanqi Wang ◽  
Xianbin Zhang ◽  
Lei Zhang ◽  
Xuyan Wei
Keyword(s):  
Slow Light ◽  
Ring Resonator ◽  
New Technologies ◽  
Single Layer ◽  
Split Ring Resonator ◽  
Single Layer Graphene ◽  
Dark Mode ◽  
Radiative Coupling ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

New technologies and materials with superior characteristics impel great development of functional devices in the terahertz field. The dynamically tunable plasmon-induced transparency (PIT) based on radiative–radiative-coupling in terahertz hybrid metal–graphene metamaterial is numerically investigated in this paper. For the active manipulation of the PIT device, the single-layer graphene is integrated into the proposed structure consisting of the split-ring-resonator (SRR) and the closed-ring-resonator (CRR). Dynamically adjusting Fermi energy in graphene leads to modulation of the PIT window, allowing for the active control of the group delay. From the simulated electrical field distributions and effective circuit model to analyze, the transmission spectrum modulation can be attributed to the altering in the energy loss of the dark mode resonator through the conduction effect of the graphene layer. Our work offers theoretical references for the development of slow light terahertz devices in the future.

A novel reconfigurable electromagnetically induced transparency based on S-PINs

2018 ◽  
Vol 32 (04) ◽  
pp. 1850030 ◽  
Author(s):  
Feng Xue ◽  
Shao-Bin Liu ◽  
Hai-Feng Zhang ◽  
Yong-Diao Wen ◽  
Xiang-Kun Kong ◽  
...  
Keyword(s):  
Slow Light ◽  
Ring Resonator ◽  
Electromagnetically Induced Transparency ◽  
Split Ring Resonator ◽  
Destructive Interference ◽  
Split Ring ◽  
Simple Method ◽  
Strong Phase ◽  
Phase Dispersion ◽  
Induced Transparency

In this paper, a tunable electromagnetically induced transparency (EIT) based on S-PINs is theoretically analyzed. Unit cell of the structure consists of a cutwire (CW), split ring resonator (SRR), and solid state plasma (SS plasma) patches which are composed of S-PIN array. The destructive interference between the CW and SRR results in a narrowband transparency window accompanied with strong phase dispersion. The proposed design can obtain a tunable EIT with different frequencies range from 12.8 GHz to 16.5 GHz in a simple method by switching these S-PINs on or off selectively. The related parameters of the S-PIN such as the size, carrier concentration, and volt-ampere characteristics have been studied theoretically. The interaction and coupling between two resonators are investigated in detail by the analysis of the current distribution and E-field strength as well. The research results provide an effective way to realize reconfigurable compact slow-light devices.

Slow light based on plasmon-induced transparency in dual-ring resonator-coupled MDM waveguide system

2014 ◽  
Vol 47 (20) ◽  
pp. 205101 ◽  
Author(s):  
Shiping Zhan ◽  
Hongjian Li ◽  
Guangtao Cao ◽  
Zhihui He ◽  
Boxun Li ◽  
...  
Keyword(s):  
Slow Light ◽  
Ring Resonator ◽  
Waveguide System ◽  
Induced Transparency ◽  
Dual Ring ◽  
Plasmon Induced Transparency

scholarly journals Demonstration of Dipole-Induced Transparency Using Mirrored Split-Ring Resonator Metasurface For Microwave Applications

2022 ◽  
Author(s):  
Sarin VP ◽  
Rohith K. Raj ◽  
Vasudevan K
Keyword(s):  
Electric Dipole ◽  
Ring Resonator ◽  
Dipole Moments ◽  
Single Layer ◽  
Split Ring Resonator ◽  
Transparency Window ◽  
Destructive Interference ◽  
Split Ring ◽  
Electric Dipole Moments ◽  
Induced Transparency

Abstract In this paper, dipole-induced transparency in the microwave regime is proposed and verified using experimental and simulation studies. A single layer mirrored Split-Ring Resonator (SRR) metasurface array working under the H⊥excitation scenario is used to achieveout-of-phase electric dipole moments on the metasurface for a normal incident plane wave. The emergence of the transparency window is accompanied by the destructive interference between out-of-phase oscillating electric dipole moments on the metasurfaceand is verified in computations by studying the radar Cross Section in full-wave electromagnetic simulations.We used the multipole scattering theory to validate the results computationally. The coupling effects are studied numerically, and the emergence of the transparency window is studied experimentally using transmission measurements inside an anechoic chamber using a vector network analyzer.

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

scholarly journals Dual-Tunable Polarization Insensitive Electromagnetically Induced Transparency in Metamaterials

2021 ◽  
Author(s):  
Renxia Ning ◽  
Zhiqiang Xiao ◽  
Zhenhai Chen ◽  
Wei Huang
Keyword(s):  
Vanadium Dioxide ◽  
Mode Coupling ◽  
Slow Light ◽  
Chemical Potential ◽  
Electromagnetically Induced Transparency ◽  
Dark Mode ◽  
Potential Applications ◽  
Polarization Insensitive ◽  
Terahertz Devices ◽  
Induced Transparency

AbstractA multilayer structure of a square ring of graphene with nesting vanadium dioxide (VO2) was investigated in this study. This structure exhibits electromagnetically induced transparency (EIT), which stems from a bright mode coupling with a dark mode. The permittivity values of graphene and VO2 can be modulated via chemical potential and temperature, respectively. The EIT effect can be tuned based on the chemical potential of graphene and temperature of VO2, resulting in a dual-tunable EIT effect. Simulation results confirmed that this dual-tunable EIT phenomenon is insensitive to polarization. These results may have potential applications in terahertz devices, such as slow light devices, switching devices, and sensors.

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

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
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