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dc.contributor.authorLoh, Po-Ru
dc.contributor.authorOskooi, Ardavan
dc.contributor.authorIbanescu, Mihai
dc.contributor.authorSkorobogatiy, Maksim
dc.contributor.authorJohnson, Steven G.
dc.date.accessioned2010-02-17T20:44:45Z
dc.date.available2010-02-17T20:44:45Z
dc.date.issued2009-06
dc.date.submitted2009-03
dc.identifier.issn1550-2376
dc.identifier.issn1539-3755
dc.identifier.urihttp://hdl.handle.net/1721.1/51780
dc.description.abstractWe demonstrate that the ratio of group to phase velocity has a simple relationship to the orientation of the electromagnetic field. In nondispersive materials, opposite group and phase velocity corresponds to fields that are mostly oriented in the propagation direction. More generally, this relationship (including the case of dispersive and negative-index materials) offers a perspective on the phenomena of backward waves and left-handed media. As an application of this relationship, we demonstrate and explain an irrecoverable failure of perfectly matched layer absorbing boundaries in computer simulations for constant cross-section waveguides with backward-wave modes and suggest an alternative in the form of adiabatic isotropic absorbers.en
dc.description.sponsorshipArmy Research Office, ISNen
dc.description.sponsorshipNational Science Foundation MRSEC Programen
dc.description.sponsorshipNational Defense Science and Engineering Councilen
dc.language.isoen_US
dc.publisherAmerican Physical Societyen
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevE.79.065601en
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en
dc.sourceAPSen
dc.titleFundamental relation between phase and group velocity, and application to the failure of perfectly matched layers in backward-wave structuresen
dc.typeArticleen
dc.identifier.citationLoh, Po-Ru et al. “Fundamental relation between phase and group velocity, and application to the failure of perfectly matched layers in backward-wave structures.” Physical Review E 79.6 (2009): 065601. © 2009 The American Physical Society.en
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mathematicsen_US
dc.contributor.approverJohnson, Steven G.
dc.contributor.mitauthorLoh, Po-Ru
dc.contributor.mitauthorOskooi, Ardavan F.
dc.contributor.mitauthorJohnson, Steven G.
dc.relation.journalPhysical Review Een
dc.eprint.versionFinal published versionen
dc.type.urihttp://purl.org/eprint/type/JournalArticleen
eprint.statushttp://purl.org/eprint/status/PeerRevieweden
eprint.grantNumberDAAD-19- 02-D0002en
eprint.grantNumberDMR- 0819762en
dspace.orderedauthorsLoh, Po-Ru; Oskooi, Ardavan; Ibanescu, Mihai; Skorobogatiy, Maksim; Johnson, Stevenen
dc.identifier.orcidhttps://orcid.org/0000-0001-7327-4967
dspace.mitauthor.errortrue
mit.licensePUBLISHER_POLICYen
mit.metadata.statusComplete


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