scholarly journals Optical pulse dynamics in active metamaterials with positive and negative refractive index

2013 ◽  
Vol 30 (4) ◽  
pp. 1077 ◽  
Author(s):  
Alexander O. Korotkevich ◽  
Kathryn E. Rasmussen ◽  
Gregor Kovačič ◽  
Victor Roytburd ◽  
Andrei I. Maimistov ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Pulse ◽  
Negative Refractive Index ◽  
Pulse Dynamics ◽  
Active Metamaterials

3D few cycle optical pulses in carbon nanotube-based photonic crystal with allowance for mechanical stress

2021 ◽  
pp. 2150435
Author(s):  
Yu. V. Dvuzhilova ◽  
I. S. Dvuzhilov ◽  
M. B. Belonenko ◽  
E. N. Galkina
Keyword(s):  
Refractive Index ◽  
Carbon Nanotube ◽  
Gauge Theory ◽  
Photonic Crystal ◽  
Theoretical Model ◽  
Mechanical Stress ◽  
Optical Pulse ◽  
Three Dimensional ◽  
Optical Pulses ◽  
Pulse Dynamics

This paper constructs and numerically analyzes a theoretical model of three-dimensional few cycle optical pulse dynamics in semiconductor carbon nanotube-based spatially-modulated refractive index medium. It takes into account external deformation in terms of the gauge theory. It identifies the stable propagation of that kind of pulses in photonic crystal. The paper also reveals the dependence of pulse dynamics on photonic crystal characteristics (refractive index depth and modulation period in particular).

Compact ring resonators using negative-refractive-index microstrip line

2005 ◽  
Vol 45 (4) ◽  
pp. 294-295 ◽  
Author(s):  
Aaron D. Scher ◽  
Christopher T. Rodenbeck ◽  
Kai Chang
Keyword(s):  
Refractive Index ◽  
Microstrip Line ◽  
Negative Refractive Index ◽  
Ring Resonators ◽  
Compact Ring

Local decomposition of solid solutions, nanostructures and optical materials with negative refractive index

2016 ◽  
Vol 30 (07) ◽  
pp. 1650088
Author(s):  
Valeriy M. Ishchuk ◽  
Vladimir Sobolev
Keyword(s):  
Refractive Index ◽  
Electric Conductivity ◽  
Solid Solutions ◽  
Lead Zirconate Titanate ◽  
Perovskite Structure ◽  
Optical Materials ◽  
Negative Refractive Index ◽  
Lead Zirconate ◽  
The State ◽  
Interphase Boundaries

In this paper, a possibility of use of the controlled decomposition of solid solutions of oxides with perovskite structure in the state of coexisting domains of the antiferroelectric (AFE) and ferroelectric (FE) phases for manufacturing materials with the negative refractive index is demonstrated. The lead zirconate titanate-based solid solutions are considered as an example of substances suitable for creation of such materials. Manufactured composites constitute a dielectric AFE matrix with a structure of conducting interphase boundaries separating domains of the FE and AFE phases. The electric conductivity of the interphase boundaries occurs as a result of the local decomposition of the solid solutions in the vicinity of these boundaries. The decomposition process and consequently the conductivity of the interphase boundaries can be controlled by means of external influences.

scholarly journals Parallel LC shaped metamaterial resonator for C and X band satellite applications with wider bandwidth

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mohammad Rashed Iqbal Faruque ◽  
Air Mohammad Siddiky ◽  
Eistiak Ahamed ◽  
Mohammad Tariqul Islam ◽  
Sabirin Abdullah
Keyword(s):  
Refractive Index ◽  
Negative Refractive Index ◽  
Coupling Effect ◽  
Research Work ◽  
Negative Permittivity ◽  
Electromagnetic Properties ◽  
Conducting Layer ◽  
Resonant Frequencies ◽  
New Era ◽  
Satellite Applications

AbstractThe electromagnetic properties of the metal based dielectric in the field of millimeter and sub-millimeter technology attracts a new era for innovation. In this research work, we have introduced a parallel LC shaped metamaterial resonator with wider bandwidth. The negative refractive index for two resonant frequencies is located from the negative permittivity from 5.1 to 6.3, 10.4 to 12.9 GHz, where the negative refractive index is located from 5.4 to 6.3 and 10.5 to 13.5 GHz. The electromagnetic wave polarizing in the proposed structure with parallel LC shaped metallic structure shows a fascinating response of wider bandwidth for the external electric and magnetic field. This paper focuses on the design of conducting layer for the suggested design with the parallel metallic arm for analysing the mutual coupling effect of the scattering response where the sub-branch in metallic design is shown more resonant frequencies with the enhancement of the compactness. This proposed structure is analysed with different metallic arrangements and array structures for different boundary conditions.

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