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Experimental verification of the concept of all-dielectric nanoantennas

Filonov, Dmitry S.; Krasnok, Alexander E.; Slobozhanyuk, Alexey P.; Kapitanova, Polina V.; Nenasheva, Elizaveta A.; Kivshar, Yuri S.; Belov, Pavel A.


Being motivated by the recent theoretical proposal of nanoantennas based on high-permittivity dielectric spheres [A. E. Krasnok et al., JETP Lett. 94, 22113 (2011)], we suggest and verify experimentally the concept of all-dielectric antennas in the microwave frequency range. In addition to the electric resonance, each sphere exhibits a very strong magnetic resonance, resulting in a narrow radiation pattern and overall high directivity of such antennas. We find an excellent agreement between the...[Show more]

CollectionsANU Research Publications
Date published: 2012-05-17
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.4719209


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