Observation of Fano resonance and classical analog of electromagnetically induced transparency in toroidal metamaterials

2016 ◽  
Vol 528 (5) ◽  
pp. 352-357 ◽  
Author(s):  
Song Han ◽  
Lonqing Cong ◽  
Fei Gao ◽  
Ranjan Singh ◽  
Helin Yang
Keyword(s):  
Fano Resonance ◽  
Electromagnetically Induced Transparency ◽  
Classical Analog ◽  
Induced Transparency

scholarly journals Double E-shaped toroidal metasurface with high Q-factor Fano resonance and electromagnetically induced transparency

AIP Advances ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 095011
Author(s):  
Ting Chen ◽  
Tianyu Xiang ◽  
Jianwei Wang ◽  
Tao Lei ◽  
Fushan Lu
Keyword(s):  
Fano Resonance ◽  
Electromagnetically Induced Transparency ◽  
Q Factor ◽  
High Q ◽  
Induced Transparency

scholarly journals Design of a Polarization-Independent Dual-Band Electromagnetically Induced Transparency-Like Metamaterial

2019 ◽  
Vol 8 (2) ◽  
pp. 63-70 ◽  
Author(s):  
O. Demirkap ◽  
F. Bagci ◽  
A. E. Yilmaz ◽  
B. Akaoglu
Keyword(s):  
Numerical Methods ◽  
Slow Light ◽  
Ring Resonator ◽  
Electromagnetically Induced Transparency ◽  
Dual Band ◽  
Oblique Angle ◽  
Classical Analog ◽  
Induced Transparency ◽  
Polarization Independent ◽  
Minkowski Fractal

In this study, the classical analog of single and dual-band electromagnetically induced transparency is demonstrated with a four-fold symmetric metamaterial consisting of a Minkowski fractal ring resonator surrounded by a square ring resonator. The proposed metamaterials show high transmission ratios at the polarization independent resonances, as confirmed by the applied two different numerical methods. Delay-bandwidth products are found to be 0.34 and 0.61 at the resonances of the dual-band metamaterial. The peak frequencies and transmission ratios maintain also for oblique angle of incidences. These features of the proposed metamaterials are promising for single and multi-band filtering applications as well as for slow light and sensing devices.

scholarly journals Classical analog of electromagnetically induced transparency

2002 ◽  
Vol 70 (1) ◽  
pp. 37-41 ◽  
Author(s):  
C. L. Garrido Alzar ◽  
M. A. G. Martinez ◽  
P. Nussenzveig
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Classical Analog ◽  
Induced Transparency

scholarly journals Graphene plasmonically induced analogue of tunable electromagnetically induced transparency without structurally or spatially asymmetry

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Yuwen He ◽  
Jianfa Zhang ◽  
Wei Xu ◽  
Chucai Guo ◽  
Ken Liu ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Fano Resonance ◽  
Electromagnetically Induced Transparency ◽  
Plasmon Coupling ◽  
Graphene Ribbon ◽  
Dark Mode ◽  
Physical Understanding ◽  
Coherent Coupling ◽  
Induced Transparency ◽  
Bright Mode

AbstractElectromagnetically induced transparency (EIT) arises from the coherent coupling and interference between a superradiant (bright) mode in one resonator and a subradiant (dark) mode in an adjacent resonator. Generally, the two adjacent resonators are structurally or spatially asymmetric. Here, by numerical simulation, we demonstrate that tunable EIT can be induced by graphene ribbon pairs without structurally or spatially asymmetry. The mechanism originates from the fact that the resonate frequencies of the bright mode and the dark mode supported by the symmetrical graphene ribbon pairs can be respectively tuned by electrical doping levels, and when they are tuned to be equal the graphene plasmon coupling and interference occurs. The EIT in symmetrical nanostructure which avoids deliberately breaking the element symmetry in shape as well as in size facilitates the design and fabrication of the structure. In addition, the work regarding to EIT in the structurally symmetric could provide a fresh contribution to a more comprehensive physical understanding of Fano resonance.

Sign in / Sign up

Export Citation Format

Share Document