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dc.contributor.authorOzbay, E.en_US
dc.contributor.authorGuven, K.en_US
dc.contributor.authorBayindir, M.en_US
dc.date.accessioned2016-02-08T11:55:28Z
dc.date.available2016-02-08T11:55:28Z
dc.date.issued2003en_US
dc.identifier.issn0277786X
dc.identifier.urihttp://hdl.handle.net/11693/27514
dc.description.abstractPhotonic crystals are three dimensional periodic structures having the property of reflecting the electromagnetic (EM) waves in all dimensions, for a certain range of frequencies. Defects or cavities around the same geometry can also be built by means of adding or removing material. The electrical fields in such cavities are usually enhanced, and by placing active devices in such cavities, one can make the device benefit from the wavelength selectivity and the large enhancement of the resonant EM field within the cavity. By using coupled periodic defects, we have experimentally observed a new type of waveguiding in a photonic crystal. A complete transmission was achieved throughout the entire waveguiding band. The transmission, phase, and delay time characteristics of the various coupled-cavity structures were measured and calculated. We observed the eigenmode splitting, waveguiding through the coupled cavities, splitting and switching of electromagnetic waves in waveguide ports, and Mach-Xender interferometer effect in such structures. The corresponding field patterns and the transmission spectra were obtained from the finite-difference-time-domain (FDTD) simulations. We developed a theory based on the classical wave analog of the tight-binding (TB) approximation in solid state physics. Experimental results are in good agreement with the FDTD simulations and predictions of the TB approximation.en_US
dc.language.isoEnglishen_US
dc.source.titleProceedings of SPIE - The International Society for Optical Engineeringen_US
dc.relation.isversionofhttp://dx.doi.org/10.1117/12.480055en_US
dc.subjectCoupled Cavityen_US
dc.subjectFDTDen_US
dc.subjectMach-Zehnderen_US
dc.subjectPhotonic Crystalsen_US
dc.subjectTight Binding Approximationen_US
dc.subjectWaveguideen_US
dc.subjectApproximation theoryen_US
dc.subjectComputer simulationen_US
dc.subjectCrystalsen_US
dc.subjectElectromagnetic wavesen_US
dc.subjectFinite difference methoden_US
dc.subjectFrequenciesen_US
dc.subjectInterferometersen_US
dc.subjectSwitchingen_US
dc.subjectTime domain analysisen_US
dc.subjectWaveguidesen_US
dc.subjectDefect structuresen_US
dc.subjectPhotonsen_US
dc.titlePhysics and Applications of Defect Structures in Photonic Crystalsen_US
dc.typeConference Paperen_US
dc.departmentDepartment of Physics
dc.citation.spage237en_US
dc.citation.epage250en_US
dc.citation.volumeNumber5000en_US
dc.identifier.doi10.1117/12.480055en_US


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