scholarly journals Designs and Performance Characteristics of Coated Nanotoroid Antennas

2015 ◽  
Vol 2015 ◽  
pp. 1-11
Author(s):  
Sami Ur Rehman ◽  
Junping Geng ◽  
Richard W. Ziolkowski ◽  
Ying Wang ◽  
Xianling Liang ◽  
...  
Keyword(s):  
Plane Wave ◽  
Resonance Frequency ◽  
Wave Scattering ◽  
Electromagnetic Properties ◽  
Purcell Factor ◽  
Active Core ◽  
Radiating Element ◽  
Plane Wave Scattering ◽  
And Performance ◽  
Strong Dipole

The electromagnetic properties of a toroidal coated nanoparticle (T-CNP) antenna with an active core (doped with rare earth erbium Er3+ions) are investigated. It is demonstrated that the active T-CNP acts as a strong dipole radiator at its resonance frequency when it is excited by a plane wave or an electric Hertzian dipole (EHD) radiating element. It is shown that in comparison to being a passive structure, the plane wave scattering cross section of the T-CNP can be increased by nearly 108 dBsm at its resonance frequency when it is active. Moreover, it is further demonstrated that the maximum peak of the power radiated by an EHD element in the presence of a properly designed active T-CNP is more than 120 dB over its value when radiating in free space; that is, its Purcell factor is 1012.

scholarly journals Анализ поглощающих периодических структур, образованных цилиндрическими электромагнитными черными дырами

2021 ◽  
Vol 91 (2) ◽  
pp. 326
Author(s):  
Я.И. Чижевская ◽  
О.Н. Смольникова ◽  
С.П. Скобелев
Keyword(s):  
Black Holes ◽  
Refractive Index ◽  
Plane Wave ◽  
Wave Scattering ◽  
Periodic Structures ◽  
Electromagnetic Plane Wave ◽  
Hybrid Projection Method ◽  
Plane Wave Scattering ◽  
And Performance ◽  
Electromagnetic Plane

A 2D problem of electromagnetic plane wave scattering by 1D-periodic structures composed of cylindrical black holes arranged on a semi-infinite substrate is considered. Two algorithms corresponding to the cases of E- and H-polarization and based on the hybrid projection method accounting for the refractive index profiles in the black holes of a few types are developed. The algorithms are generalized also on the case of arrangement of the black holes on a PEC screen. A number of numerical results characterizing both the effectiveness of the algorithms themselves and performance of the absorbing structures with black holes are presented. Absorbing characteristics of the indicated structures are compared to the similar characteristic obtained for the structures of wedge elements.

scholarly journals Integral Equation Analysis of Plane Wave Scattering by Coplanar Graphene-Strip Gratings in the THz Range

2013 ◽  
Vol 3 (5) ◽  
pp. 666-674 ◽  
Author(s):  
Olga V. Shapoval ◽  
Juan Sebastian Gomez-Diaz ◽  
Julien Perruisseau-Carrier ◽  
Juan R. Mosig ◽  
Alexander I. Nosich
Keyword(s):  
Integral Equation ◽  
Plane Wave ◽  
Wave Scattering ◽  
Equation Analysis ◽  
Thz Range ◽  
Plane Wave Scattering ◽  
Graphene Strip

scholarly journals Plane wave scattering from a plasmonic nanowire-film system with the inclusion of non-local effects

2015 ◽  
Vol 23 (20) ◽  
pp. 26064 ◽  
Author(s):  
Rahul Trivedi ◽  
Yashna Sharma ◽  
Anuj Dhawan
Keyword(s):  
Plane Wave ◽  
Wave Scattering ◽  
Film System ◽  
Local Effects ◽  
Non Local ◽  
Plane Wave Scattering

scholarly journals Plane-wave scattering by self-complementary metasurfaces in terms of electromagnetic duality and Babinet's principle

2013 ◽  
Vol 88 (20) ◽  
Author(s):  
Yosuke Nakata ◽  
Yoshiro Urade ◽  
Toshihiro Nakanishi ◽  
Masao Kitano
Keyword(s):  
Plane Wave ◽  
Wave Scattering ◽  
Plane Wave Scattering
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