TY - GEN
T1 - All-dielectric optical 'huygens source'
AU - Krasnok, Alexander E.
AU - Krasnok, Ekaterina A.
AU - Filonov, Dmitry S.
AU - Kapitanova, Polina V.
AU - Belov, Pavel A.
N1 - Publisher Copyright:
© 2014 European Microwave Association.
PY - 2014/12/15
Y1 - 2014/12/15
N2 - The concept of all-dielectric nanoantennas operating in optical frequency domain is suggested. A huygens source consisting of a high-permittivity dielectric sphere excited by a point-like dipole is considered. We demonstarte that in addition to the electric resonance, the sphere exhibits a very strong magnetic resonance, resulting in a narrow radiation pattern, overall high nanoantenna directivity and radiation direction controll. To verify the proposed concept experimentally we scale up the nanoantenna design to microwave frequency range. We find an excellent agreement between the experimental data and numerical results and verify directly high-performance characteristics of the all-dielectric antennas.
AB - The concept of all-dielectric nanoantennas operating in optical frequency domain is suggested. A huygens source consisting of a high-permittivity dielectric sphere excited by a point-like dipole is considered. We demonstarte that in addition to the electric resonance, the sphere exhibits a very strong magnetic resonance, resulting in a narrow radiation pattern, overall high nanoantenna directivity and radiation direction controll. To verify the proposed concept experimentally we scale up the nanoantenna design to microwave frequency range. We find an excellent agreement between the experimental data and numerical results and verify directly high-performance characteristics of the all-dielectric antennas.
UR - http://www.scopus.com/inward/record.url?scp=84929231694&partnerID=8YFLogxK
U2 - 10.1109/EuMC.2014.6986524
DO - 10.1109/EuMC.2014.6986524
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AN - SCOPUS:84929231694
T3 - European Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference
SP - 676
EP - 678
BT - European Microwave Week 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 44th European Microwave Conference, EuMC 2014 - Held as Part of the 17th European Microwave Week, EuMW 2014
Y2 - 6 October 2014 through 9 October 2014
ER -