Nonradiating sources for efficient wireless power transfer
| Autor: | Polina Kapitanova, Adrià Canós Valero, Andrey E. Miroshnichenko, Alexander S. Shalin, Andrey B. Evlyukhin, Mingzhao Song, Esmaeel Zanganeh, Elizaveta Nenasheva |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
QC1-999
wireless power transfer nonradiating source Inductive power transmission ddc:530 Resonators Wireless power transfer Physics::Atomic Physics Electrical and Electronic Engineering Physics Power transfer systems Wireless power business.industry Electrical engineering Power transfers Atomic and Molecular Physics and Optics Radiation loss Electronic Optical and Magnetic Materials hybrid anapole state Energy transfer power transfer efficiency radiation loss Nanophotonics Near fields Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik Sources of energy business Biotechnology |
| Zdroj: | Nanophotonics, Vol 10, Iss 17, Pp 4399-4408 (2021) Nanophotonics 10 (2021), Nr. 17 Nanophotonics |
| ISSN: | 2192-8614 |
| Popis: | Nonradiating sources of energy realized under a wave scattering on high-index dielectric nanoparticles have attracted a lot of attention in nano-optics and nanophotonics. They do not emit energy to the far-field, but simultaneously provides strong near-field energy confinement. Near-field wireless power transfer technologies suffer from low efficiency and short operation distance. The key factor to improve efficiency is to reduce the radiation loss of the resonators included in the transmitter and receiver. In this paper, we develop a wireless power transfer system based on nonradiating sources implemented using colossal permittivity dielectric disk resonator and a subwavelength metal loop. We demonstrate that this nonradiating nature is due to the hybrid anapole state originated by destructive interference of the fields generated by multipole moments of different parts of the nonradiating source, without a contribution of toroidal moments. We experimentally investigate a wireless power transfer system prototype and demonstrate that higher efficiency can be achieved when operating on the nonradiating hybrid anapole state compared to the systems operating on magnetic dipole and magnetic quadrupole modes due to the radiation loss suppression. © 2021 Esmaeel Zanganeh et al., published by De Gruyter, Berlin/Boston. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|