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Manipulation of the resonance interaction in Mach-Zehnder-Fano interferometers

XU, Yi; Miroshnichenko, Andrey

Description

We study tunable interaction of the resonances in the Mach-Zehnder-Fano interferometers (MZFIs). A discrete Mach-Zehnder interferometer (MZI) with balanced arms supports bound states in the continuum. We demonstrate that doping an impurity in conventional MZIs gives rise to robust high-Q Fano resonances with asymmetric line shapes. By means of the modified Fano-Anderson model and the scattering-matrix approach, we show that the transmission and the intensity spectra of the whole system are very...[Show more]

dc.contributor.authorXU, Yi
dc.contributor.authorMiroshnichenko, Andrey
dc.date.accessioned2015-12-10T22:35:33Z
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/1885/56311
dc.description.abstractWe study tunable interaction of the resonances in the Mach-Zehnder-Fano interferometers (MZFIs). A discrete Mach-Zehnder interferometer (MZI) with balanced arms supports bound states in the continuum. We demonstrate that doping an impurity in conventional MZIs gives rise to robust high-Q Fano resonances with asymmetric line shapes. By means of the modified Fano-Anderson model and the scattering-matrix approach, we show that the transmission and the intensity spectra of the whole system are very sensitive to both the location and the strength of the impurity. The side-coupled Fano defects induce an interaction with different eigenmodes of the pure MZI loop. We explore this interaction by tuning the parameters of the Fano defects. The observed resonance interaction can be attributed to the Fano-Feshbach resonance. We further provide with a particular physical example of photonic crystal circuit the applicability of our concept.
dc.publisherAmerican Physical Society
dc.rightsAuthor/s retain copyright
dc.sourcePhysical Review A: Atomic, Molecular and Optical Physics
dc.subjectKeywords: Bound state; Eigen modes; Fano resonances; Line shape; Photonic crystal circuits; Resonance interaction; Scattering matrices; Whole systems; Crystal impurities; Defects; Interferometers; Photonic crystals; Resonance
dc.titleManipulation of the resonance interaction in Mach-Zehnder-Fano interferometers
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume84
dc.date.issued2011
local.identifier.absfor020501 - Classical and Physical Optics
local.identifier.ariespublicationu9201385xPUB358
local.type.statusPublished Version
local.contributor.affiliationXU, Yi, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationMiroshnichenko, Andrey, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.issue033828
local.bibliographicCitation.startpage9
local.identifier.doi10.1103/PhysRevA.84.033828
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2016-02-24T11:50:32Z
local.identifier.scopusID2-s2.0-80052735779
local.identifier.thomsonID000294919900015
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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