In the present paper, a theoretical and experimental study of a highly absorptive, weakly reflective coating designed and fabricated on the basis of 3D THz resonant elements is reported. Transmission and reflection of electromagnetic waves from the metamaterial-substrate structure involving a highly absorptive, weakly reflective array of artificial bi-anisotropic elements were analyzed. The samples contained paired right-handed and left-handed helices, due to the fact that the chirality was compensated. The parameters of helices were optimized to achieve roughly identical values of dielectric permittivity and magnetic permeability. As a result, the metamaterial exhibited weak reflectivity in the vicinity of resonance frequency. On the other hand, effective resonance properties of the helices were tuned to ensure substantial absorption of THz radiation. Analytical expressions for the coefficients of radiation reflection and transmission in the samples were derived by solving a boundary-value problem for the propagation of electromagnetic waves in the metamaterial-substrate system. Simulated properties of fabricated structures were compared with experimental data.
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7 January 2017
Research Article|
January 05 2017
Investigation of electromagnetic properties of a high absorptive, weakly reflective metamaterial—substrate system with compensated chirality
I. V. Semchenko;
I. V. Semchenko
a)
1
Francisk Skorina Gomel State University
, 104, Sovetskaya Str., Gomel 246019, Belarus
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S. A. Khakhomov
;
S. A. Khakhomov
1
Francisk Skorina Gomel State University
, 104, Sovetskaya Str., Gomel 246019, Belarus
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V. S. Asadchy;
V. S. Asadchy
1
Francisk Skorina Gomel State University
, 104, Sovetskaya Str., Gomel 246019, Belarus
2
Aalto University
, Aalto FI-00076, Finland
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S. V. Golod;
S. V. Golod
3Rzhanov Institute of Semiconductor Physics,
Siberian Branch of Russian Academy of Science
, 13, Acad. Lavrent'ev Avenue, 630090 Novosibirsk, Russia
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E. V. Naumova;
E. V. Naumova
3Rzhanov Institute of Semiconductor Physics,
Siberian Branch of Russian Academy of Science
, 13, Acad. Lavrent'ev Avenue, 630090 Novosibirsk, Russia
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V. Ya. Prinz
;
V. Ya. Prinz
3Rzhanov Institute of Semiconductor Physics,
Siberian Branch of Russian Academy of Science
, 13, Acad. Lavrent'ev Avenue, 630090 Novosibirsk, Russia
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A. M. Goncharenko;
A. M. Goncharenko
4Stepanov Institute of Physics,
National Academy of Science
, Belarus, 68, Nezavisimosti Avenue, 220072 Minsk, Belarus
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G. V. Sinitsyn;
G. V. Sinitsyn
4Stepanov Institute of Physics,
National Academy of Science
, Belarus, 68, Nezavisimosti Avenue, 220072 Minsk, Belarus
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A. V. Lyakhnovich;
A. V. Lyakhnovich
4Stepanov Institute of Physics,
National Academy of Science
, Belarus, 68, Nezavisimosti Avenue, 220072 Minsk, Belarus
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V. L. Malevich
V. L. Malevich
4Stepanov Institute of Physics,
National Academy of Science
, Belarus, 68, Nezavisimosti Avenue, 220072 Minsk, Belarus
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a)
Author to whom correspondence should be addressed. Electronic mail: isemchenko@gsu.by
J. Appl. Phys. 121, 015108 (2017)
Article history
Received:
September 25 2016
Accepted:
December 22 2016
Citation
I. V. Semchenko, S. A. Khakhomov, V. S. Asadchy, S. V. Golod, E. V. Naumova, V. Ya. Prinz, A. M. Goncharenko, G. V. Sinitsyn, A. V. Lyakhnovich, V. L. Malevich; Investigation of electromagnetic properties of a high absorptive, weakly reflective metamaterial—substrate system with compensated chirality. J. Appl. Phys. 7 January 2017; 121 (1): 015108. https://doi.org/10.1063/1.4973679
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