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|Title:||A toroidal metamaterial switch||Authors:||Gupta, Manoj
Srivastava, Yogesh Kumar
|Issue Date:||2018||Source:||Gupta, M., Srivastava, Y. K., & Singh, R. (2018). A Toroidal Metamaterial Switch. Advanced Materials, 30(4), 1704845-. doi:10.1002/adma.201704845||Series/Report no.:||Advanced Materials||Abstract:||Toroidal dipole is a localized electromagnetic excitation that plays an important role in determining the fundamental properties of matter due to its unique potential to excite nearly nonradiating charge–current configuration. Toroidal dipoles are recently discovered in metamaterial systems where it is shown that these dipoles manifest as poloidal currents on the surface of a torus and are distinctly different from the traditional electric and magnetic dipoles. Here, an active toroidal metamaterial switch is demonstrated in which the toroidal dipole can be dynamically switched to the fundamental electric dipole or magnetic dipole, through selective inclusion of active elements in a hybrid metamolecule design. Active switching of nonradiating toroidal configuration into highly radiating electric and magnetic dipoles can have significant impact in controlling the electromagnetic excitations in free space and matter that can have potential applications in designing efficient lasers, sensors, filters, and modulators.||URI:||https://hdl.handle.net/10356/88518
|ISSN:||0935-9648||DOI:||10.1002/adma.201704845||Rights:||© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.This is the peer reviewed version of the following article: Gupta, M., Srivastava, Y. K., & Singh, R. (2018). A Toroidal Metamaterial Switch. Advanced Materials, 30(4), 1704845-, which has been published in final form at http://dx.doi.org/10.1002/adma.201704845. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SPMS Journal Articles|
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