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Article: Directional excitation without breaking reciprocity

TitleDirectional excitation without breaking reciprocity
Authors
Keywordsacoustics
PT symmetry
directional excitation
Issue Date2016
Citation
New Journal of Physics, 2016, v. 18, n. 9 How to Cite?
Abstract� 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. We propose a mechanism for directional excitation without breaking reciprocity. This is achieved by embedding an impedance matched parity-time symmetric potential in a three-port system. The amplitude distribution within the gain and loss regions is strongly influenced by the direction of the incoming field. Consequently, the excitation of the third port is contingent on the direction of incidence while transmission in the main channel is immune. Our design improves the four-port directional coupler scheme, as there is no need to implement an anechoic termination to one of the ports.
Persistent Identifierhttp://hdl.handle.net/10722/256794
ISSN
2020 Impact Factor: 3.729
2015 SCImago Journal Rankings: 1.902
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorRamezani, Hamidreza-
dc.contributor.authorDubois, Marc-
dc.contributor.authorWang, Yuan-
dc.contributor.authorShen, Y. Ron-
dc.contributor.authorZhang, Xiang-
dc.date.accessioned2018-07-24T08:57:56Z-
dc.date.available2018-07-24T08:57:56Z-
dc.date.issued2016-
dc.identifier.citationNew Journal of Physics, 2016, v. 18, n. 9-
dc.identifier.issn1367-2630-
dc.identifier.urihttp://hdl.handle.net/10722/256794-
dc.description.abstract� 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. We propose a mechanism for directional excitation without breaking reciprocity. This is achieved by embedding an impedance matched parity-time symmetric potential in a three-port system. The amplitude distribution within the gain and loss regions is strongly influenced by the direction of the incoming field. Consequently, the excitation of the third port is contingent on the direction of incidence while transmission in the main channel is immune. Our design improves the four-port directional coupler scheme, as there is no need to implement an anechoic termination to one of the ports.-
dc.languageeng-
dc.relation.ispartofNew Journal of Physics-
dc.subjectacoustics-
dc.subjectPT symmetry-
dc.subjectdirectional excitation-
dc.titleDirectional excitation without breaking reciprocity-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/1367-2630/18/9/095001-
dc.identifier.scopuseid_2-s2.0-84988695397-
dc.identifier.volume18-
dc.identifier.issue9-
dc.identifier.spagenull-
dc.identifier.epagenull-
dc.identifier.isiWOS:000383977700001-
dc.identifier.issnl1367-2630-

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