Realizing the electromagnetically induced transparency (EIT)-like transmission with a single hole-ring resonator

2019 ◽  
Vol 445 ◽  
pp. 101-105 ◽  
Author(s):  
Gaoyang Ye ◽  
Ran Hao ◽  
Xiaobin Lin ◽  
Erping Li
Keyword(s):  
Ring Resonator ◽  
Electromagnetically Induced Transparency ◽  
Single Hole ◽  
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 Reconfigurable Terahertz Metamaterial Using Split-Ring Meta-Atoms with Multifunctional Electromagnetic Characteristics

2020 ◽  
Vol 10 (15) ◽  
pp. 5267 ◽  
Author(s):  
Yuhang Liao ◽  
Yu-Sheng Lin
Keyword(s):  
Tuning Range ◽  
Ring Resonator ◽  
Transverse Electric ◽  
Electromagnetically Induced Transparency ◽  
Split Ring Resonator ◽  
Transverse Magnetic ◽  
Split Ring ◽  
Electromagnetic Characteristics ◽  
Switching Characteristics ◽  
Induced Transparency

We propose a reconfigurable terahertz (THz) metamaterial (RTM) to investigate its multifunctional electromagnetic characteristics by moving the meta-atoms of split-ring resonator (SRR) array. It shows the preferable and capable adjustability in the THz frequency range. The electromagnetic characteristics of the proposed RTM device are compared and analyzed by moving the meta-atoms in different polarized transverse magnetic (TM) and transverse electric (TE) modes. The symmetrical meta-atoms of RTM device exhibit a resonant tuning range of several tens of GHz and the asymmetrical meta-atoms of RTM device exhibit the better tunability. Therefore, an RTM device with reconfigurable meta-atoms possesses the resonance shifting, polarization switching, electromagnetically induced transparency (EIT) switching and multiband to single-band switching characteristics. This proposed RTM device provides the potential possibilities for the use of THz-wave optoelectronics with tunable resonance, EIT analog and tunable multiresonance characteristics.

scholarly journals A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator

Micromachines ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 495
Author(s):  
Haoran Shi ◽  
Shubin Yan ◽  
Xiaoyu Yang ◽  
Xiushan Wu ◽  
Wenchang Wu ◽  
...  
Keyword(s):  
Figure Of Merit ◽  
Ring Resonator ◽  
Electromagnetically Induced Transparency ◽  
Spectral Characteristics ◽  
The Finite Element Method ◽  
Metal Insulator ◽  
Sensing Applications ◽  
Metal Insulator Metal ◽  
Induced Transparency ◽  
Sensing Performance

A nanostructure comprising the metal-insulator-metal (MIM) bus waveguide with a stub coupled with a racetrack ring resonator is designed. The spectral characteristics of the proposed structure are analyzed via the finite element method (FEM). The results show that there is a sharp Fano resonance profile and electromagnetically induced transparency (EIT)-like effect, which are excited by a coupling between the MIM bus waveguide with a stub and the racetrack ring resonator. The normalized HZ field is affected by the displacement of the ring from the stub x greatly. The influence of the geometric parameters of the sensor design on the sensing performance is discussed. The sensitivity of the proposed structure can reach 1774 nm/RIU with a figure of merit of 61. The proposed structure has potential in nanophotonic sensing applications.

Electromagnetically induced transparency in sinusoidal modulated ring resonator

2018 ◽  
Vol 112 (23) ◽  
pp. 234102 ◽  
Author(s):  
Jagannath Malik ◽  
Sai Kiran Oruganti ◽  
Seongkyu Song ◽  
Nak Young Ko ◽  
Franklin Bien
Keyword(s):  
Ring Resonator ◽  
Electromagnetically Induced Transparency ◽  
Induced Transparency
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