Topological Photonic Media and the Possibility of Toroidal Electromagnetic Wavepackets
This study aims to present a theoretical investigation of a feasible electromagnetic wavepacket with toroidal-type dual vortices. The paper begins with a discussion on geometric phases and angular momenta of electromagnetic vortices in free space and periodic structures, and introduces topological p...
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| Médium: | Článek |
| Jazyk: | English |
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MDPI AG
2019-04-01
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| Edice: | Applied Sciences |
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| On-line přístup: | https://www.mdpi.com/2076-3417/9/7/1468 |