Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
Ultra-Thin metasurface absorbers for spectro-polarimetric radiation detectors : In-depth electromagnetic analysis and practical design for subterahertz band. / Kuznetsov, S. A.; Arzhannikov, A. V.; Fedorinin, V. N.
2017 11th International Congress on Engineered Material Platforms for Novel Wave Phenomena, Metamaterials 2017. Institute of Electrical and Electronics Engineers Inc., 2017. стр. 193-195 8107887.Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
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TY - GEN
T1 - Ultra-Thin metasurface absorbers for spectro-polarimetric radiation detectors
T2 - 11th International Congress on Engineered Material Platforms for Novel Wave Phenomena, Metamaterials 2017
AU - Kuznetsov, S. A.
AU - Arzhannikov, A. V.
AU - Fedorinin, V. N.
PY - 2017/11/14
Y1 - 2017/11/14
N2 - We present the results of extensive theoretical and experimental investigations of high-performance ultra-Thin metasurface-based radiation absorbers designed for narrow-band operation at subterahertz (subTHz) frequencies and intended for integration with spectro-polarimetric sensors of a thermal type. Implemented in a three-layered configuration with a capacitive frequency selective surface (FSS) backed by a grounded dielectric slab, the absorbers are analyzed in terms of minimizing their thickness-To-wavelength (d / λ) ratio and absorption bandwidth, while maximizing the FSS unit cells subwavelengthness and free dispersion range for absorption spectra. A choice of optimal material parameters and a role of near-field 'FSS-ground plane' coupling are discussed and an optimal FSS pattern for a 'spectrometric' absorber is deduced. Supplemented with experimental measurements in the range of 0.1-1 THz demonstrating feasibility of attaining d / λ∼1/200 at the bandwidth of several percent, original cost-effective metasurface-Absorber-based schemes for uncooled thermal subTHz sensing with spectrometric, polarimetric, and imaging capabilities are also considered.
AB - We present the results of extensive theoretical and experimental investigations of high-performance ultra-Thin metasurface-based radiation absorbers designed for narrow-band operation at subterahertz (subTHz) frequencies and intended for integration with spectro-polarimetric sensors of a thermal type. Implemented in a three-layered configuration with a capacitive frequency selective surface (FSS) backed by a grounded dielectric slab, the absorbers are analyzed in terms of minimizing their thickness-To-wavelength (d / λ) ratio and absorption bandwidth, while maximizing the FSS unit cells subwavelengthness and free dispersion range for absorption spectra. A choice of optimal material parameters and a role of near-field 'FSS-ground plane' coupling are discussed and an optimal FSS pattern for a 'spectrometric' absorber is deduced. Supplemented with experimental measurements in the range of 0.1-1 THz demonstrating feasibility of attaining d / λ∼1/200 at the bandwidth of several percent, original cost-effective metasurface-Absorber-based schemes for uncooled thermal subTHz sensing with spectrometric, polarimetric, and imaging capabilities are also considered.
UR - http://www.scopus.com/inward/record.url?scp=85040532574&partnerID=8YFLogxK
U2 - 10.1109/MetaMaterials.2017.8107887
DO - 10.1109/MetaMaterials.2017.8107887
M3 - Conference contribution
AN - SCOPUS:85040532574
SP - 193
EP - 195
BT - 2017 11th International Congress on Engineered Material Platforms for Novel Wave Phenomena, Metamaterials 2017
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 28 August 2017 through 2 September 2017
ER -
ID: 9133473