Reconfigurable designs for electromagnetically induced transparency in solid state plasma metamaterials with multiple transmission windows

2016 ◽  
Vol 30 (14) ◽  
pp. 1650070 ◽  
Author(s):  
Xiang-Kun Kong ◽  
Jin-Jun Mo ◽  
Zhi-Yang Yu ◽  
Wei Shi ◽  
Hai-Ming Li ◽  
...  
Keyword(s):  
Solid State ◽  
Electromagnetically Induced Transparency ◽  
Unit Cell ◽  
Circular Loop ◽  
Optical Phenomenon ◽  
Loop Element ◽  
Quantum Optical ◽  
Induced Transparency ◽  
Transmission Windows ◽  
State Plasma

A reconfigurable metamaterial analog electromagnetically-induced-transparency-like (EIT-like) effect is theoretically and numerically demonstrated in this paper. The unit cell is composed of a stimulated circular loop element and an unstimulated arc slot element, which are both constructed by semiconductor. The interaction between the two elements of the unit cell leads to a transparency window, resembling a special quantum optical phenomenon as electromagnetic (EM) induced transparency. The proposed designs can realize a continuously tunable EIT-like effect in a broad frequency range from 2.2 GHz to 3.6 GHz by changing the arc slot angle, while the number of EIT-like transmission windows can be configured by increasing the number of arc slots. This scheme which is constructed by solid state plasma (SSP) metamaterial provides an alternative way to realize the tunable plasmonic sensing and make new kinds of reconfigurable devices.

scholarly journals Electromagnetically Induced Transparency in Media with Rydberg Excitons 2: Cross-Kerr Modulation

Entropy ◽  
2020 ◽  
Vol 22 (2) ◽  
pp. 160 ◽  
Author(s):  
David Ziemkiewicz ◽  
Sylwia Zielińska - Raczyńska
Keyword(s):  
Quantum Information ◽  
Solid State ◽  
Phase Shift ◽  
Cuprous Oxide ◽  
Quantum Information Processing ◽  
Electromagnetically Induced Transparency ◽  
Optimum Conditions ◽  
Third Order ◽  
All Optical ◽  
Induced Transparency

By mapping photons into the sample of cuprous oxide with Rydberg excitons, it is possible to obtain a significant optical phase shift due to third-order cross-Kerr nonlinearities realized under the conditions of electromagnetically induced transparency. The optimum conditions for observation of the phase shift over π in Rydberg excitons media are examined. A discussion of the application of the cross-phase modulations in the field of all-optical quantum information processing in solid-state systems is presented.

scholarly journals Negative refraction metamaterial with low loss property at millimeter wave spectrum

2020 ◽  
Vol 9 (3) ◽  
pp. 1038-1045
Author(s):  
B. A. F. Esmail ◽  
H. A. Majid ◽  
F. A. Saparudin ◽  
M. Jusoh ◽  
A. Y. Ashyap ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Negative Refraction ◽  
Electromagnetically Induced Transparency ◽  
Wave Spectrum ◽  
Split Ring Resonator ◽  
Unit Cell ◽  
Radiation Loss ◽  
Retrieval Algorithm ◽  
Induced Transparency ◽  
Constitutive Parameters

The design of the millimeter-wave (MMW) metamaterials (MMs) unit cell operates at 28 GHz is presented and numerically investigated. The proposed structure composed of a modified split ring resonator (MSRR) printed on both sides of the substrate layer. Popular MM structures such as S-shape, G-shape, and Ω-shape are adjusted to operate at the 28 GHz for comparison purpose. MSRR achieves a wide bandwidth of 1.1 GHz in comparison with its counterparts at the resonance frequency. Moreover, the proposed structure presents very low losses by providing the highest transmission coefficient, S21, at the corresponding frequency region. The radiation loss is substantially suppressed and the negativity of the constitutive parameters of the proposed MM structure is maintained. By applying the principle of the electromagnetically induced transparency (EIT) phenomenon, the MSRR unit cell induces opposite currents on both sides of the substrate which leads to canceling out the scattering fields and suppresses the radiation loss. The constitutive parameters of the MM structures are retrieved using well known retrieval algorithm. The proposed structure can be used to enhance the performance of fifth generation (5G) antenna such as the gain and bandwidth.

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