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 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.

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

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

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.

Tunable plasmonic-induced transparency based on stub-coupled cascade ring resonator with electro-optical material

2019 ◽  
Vol 33 (18) ◽  
pp. 1950206
Author(s):  
Fang Chen ◽  
Huafeng Zhang ◽  
Lihui Sun ◽  
Jijun Li ◽  
Chunchao Yu
Keyword(s):  
Slow Light ◽  
Ring Resonator ◽  
Optical Switch ◽  
Fdtd Method ◽  
Optical Material ◽  
Ring Resonators ◽  
Refractive Index Sensor ◽  
External Voltage ◽  
All Optical Switch ◽  
Induced Transparency

The electrical control of plasmonic-induced transparency (PIT) via a resonator waveguide system is presented. The proposed structure is composed of a stub and cascade ring resonator. The ring and the stub resonator are filled with electro-optical material which can control the resonance frequency by the external voltage. Two-dimensional finite difference time domain (2D FDTD) method is used to calculate the transmission and field distribution. Single PIT is investigated both by FDTD and Coupled Mode Theory (CMT). The proposed PIT can be tuned by changing the external voltage or the geometric parameters. Double and triple PIT can be obtained by introducing more ring resonators and can be tuned by external voltage. The proposed plasmonic structure may have application in slow light device, nanoscale filter, all-optical switch and refractive index sensor.

Sign in / Sign up

Export Citation Format

Share Document