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Complete spectral gap in coupled dielectric waveguides embedded into metal

Liu, Wei; Miroshnichenko, Andrey; Poulton, Chris; Xu, Zhiyong; Neshev, Dragomir; Sukhorukov, Andrey; Kivshar, Yuri

Description

We study a plasmonic coupler involving backward (TM_01) and forward (HE_11) modes of dielectric waveguides embedded into infinite metal. The simultaneously achievable contradirectional energy flows and codirectional wavevectors in different channels lead to a spectral gap, despite the absence of periodic structures along the waveguide. We demonstrate that a complete spectral gap can be achieved in a symmetric structure composed of four coupled waveguides.

dc.contributor.authorLiu, Wei
dc.contributor.authorMiroshnichenko, Andrey
dc.contributor.authorPoulton, Chris
dc.contributor.authorXu, Zhiyong
dc.contributor.authorNeshev, Dragomir
dc.contributor.authorSukhorukov, Andrey
dc.contributor.authorKivshar, Yuri
dc.date.accessioned2015-09-17T02:17:55Z
dc.date.available2015-09-17T02:17:55Z
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/1885/15509
dc.description.abstractWe study a plasmonic coupler involving backward (TM_01) and forward (HE_11) modes of dielectric waveguides embedded into infinite metal. The simultaneously achievable contradirectional energy flows and codirectional wavevectors in different channels lead to a spectral gap, despite the absence of periodic structures along the waveguide. We demonstrate that a complete spectral gap can be achieved in a symmetric structure composed of four coupled waveguides.
dc.description.sponsorshipThe authors acknowledge a financial support from the Australian Research Council.
dc.publisherAmerican Institute of Physics
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0003-6951..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 17/09/15)
dc.rightsCopyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at https://dx.doi.org/10.1063/1.3458694
dc.sourceApplied Physics Letters
dc.subjectKeywords: Coupled dielectric waveguides; Coupled waveguides; Energy flow; Spectral gap; Symmetric structures; Dielectric waveguides
dc.titleComplete spectral gap in coupled dielectric waveguides embedded into metal
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume97
dc.date.issued2010-05-07
local.identifier.absfor020503
local.identifier.ariespublicationf2965xPUB141
local.publisher.urlhttps://www.aip.org/
local.type.statusPublished Version
local.contributor.affiliationWei, Liu, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Nonlinear Physics Centre, The Australian National University
local.contributor.affiliationSukhorukov, Andrey, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Nonlinear Physics Centre, The Australian National University
local.contributor.affiliationMiroshnichenko, Andrey, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Nonlinear Physics Centre, The Australian National University
local.contributor.affiliationPoulton, Christopher, University of Technology Sydney, Australia
local.contributor.affiliationXu, Zhiyong, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Nonlinear Physics Centre, The Australian National University
local.contributor.affiliationNeshev, Dragomir, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Nonlinear Physics Centre, The Australian National University
local.contributor.affiliationKivshar, Yuri, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Nonlinear Physics Centre, The Australian National University
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage021106
local.identifier.doi10.1063/1.3458694
dc.date.updated2016-02-24T08:13:38Z
local.identifier.scopusID2-s2.0-77955163419
local.identifier.thomsonID000279999800006
CollectionsANU Research Publications

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