Defect Mode | Scientific.Net

It is found that the acoustic wave only propagates along the path of defect when the propagation of acoustic wave is simulated on the 900 bending defect ... Registration LogIn Distribution&Access ForPublication Downloads News AboutUs ContactUs Distribution&Access ForPublication Downloads News AboutUs ContactUs Search Journals Books Journals EngineeringResearch AdvancedEngineeringForum AppliedMechanicsandMaterials EngineeringInnovations JournalofBiomimetics,BiomaterialsandBiomedicalEngineering InternationalJournalofEngineeringResearchinAfrica MaterialsScience AdvancedMaterialsResearch DefectandDiffusionForum DiffusionFoundationsandMaterialsApplications JournalofMetastableandNanocrystallineMaterials JournalofNanoResearch KeyEngineeringMaterials MaterialsScienceForum NanoHybridsandComposites SolidStatePhenomena EngineeringSeries AdvancesinScienceandTechnology ConstructionTechnologiesandArchitecture Books Topics AllBooks MaterialsScience BuildingMaterials GeneralEngineering MechanicalEngineering BioscienceandMedicine Manufacturing Electronics Construction CivilEngineering Mechanics Nanoscience Computers InformationTechnologies Transportation IndustrialEngineering EnvironmentalEngineering SpecialBookCollections SpecialBookCollections FoundationsofMaterialsScienceandEngineering SpecializedCollections RetrospectiveCollection HomeDefectMode PapersbyKeyword:DefectMode PaperTitlePage Double-ChannelFilterBasedontheStructureofTwoSymmetricLayerswithDefectsinOne-DimensionalPhotonicCrystals Authors:BiYuanJian,GuangBinWu,HongWang Abstract:Using2×2transfermatrixmethod,wenumericallyinvestigateakindofstructureinwhichtwosymmetriclayerswithdefectsaresandwichedinone-dimensionalphotoniccrystals(PCs).ThePCsaremadeofordinarydielectricsandplacedintheair.WhenalightbeamisincidentintoPCs,thetworesonantpeakscanbeachievedwhichconstituteacoupleofphotonicchannels.Thetransmittanceoftheresonantpeakscannearlyreachupto1.Furthermore,thetunabilityoftheresonantpeaksisdiscussedindetail,theresultsshowsthatthepositionoftheresonantpeakdependingonthevalueoftheincidentangle.Thesepropertiescanprovideatheoreticalbasisfordesignofanewtypeoftunabledouble-channelphotoniccrystalfilter. 220 TheInvestigationonDefectModePropertyoftheTen-FoldPhotonicQuasicrystal Authors:YuLongWu,XiaoHongSun,WeiLiu Abstract:Inthisarticle,thetransmissionspectraoften-foldphotonicquasicrystals(PQC)arecalculatedbyusingfinite-differencetime-domainmethod(FDTD).Bychangingthecrystalstructureandintroducingthepointandlinedefectstodevisethegoodmicro-cavityandwaveguidestructures.InTEmode,thetransmissionspectrawithdefectmodesareobservedandquality(Q)factorsarecalculatedtooptimizethemicro-cavitystructure.IthasthebiggestQfactorwhenthecentraldielectriccylinderisremoved.Furthermore,Designdifferentwaveguidestructuresandexplorethefielddistribution.Differentwaveguidestructurecancontroldifferentlightpathandchoosedifferentincidentlightfrequency. 246 PropagationCharacteristicin2DPhononicCrystalswithBendingLinearDefect Authors:GuangHuiFan,DeXunZhao,JiaoHe,YingKaiLiu Abstract:Thebandgapof2Dperfectanddefectphononiccrystalarecalculatedbyusingplane-waveexpansion(PWE)andsupercellplanewavemethod,whichisconsistofAl2O3embeddedintheepoxyresinwithasquarearrangement.Comparedtotheperfect,thegapofdefectwillbecomewider.Asthesizeofdefectlengthldvaried,thebandstructurechanged.Itisfoundthattheacousticwaveonlypropagatesalongthepathofdefectwhenthepropagationofacousticwaveissimulatedonthe900bendingdefectphononiccrystalsbymatlab.Itmeansthatthewavesarelocalized.Sothedefectmodeofphononiccrystalcanbeusedasacousticwaveguidealongthespecificpath. 2566 TemperatureDependentCharacteristicsof1DPhotonicCrystalwithDefects Authors:HuiBoWang,KaiTong,MeiTingWang,ChaoCongGuo Abstract:Whenthetemperatureischanged,duetotheinfluenceofthethermalexpansioneffectandthermo-opticeffect,thethicknessandrefractiveindexofeachlayerofmediumofphotoniccrystalwillbeVaried.Asshownbyopticalresonatorstheory,thedriftamountofthewavelengthhasalinearrelationshipwiththevariationoftemperature.Theelectronbeamlithographytechnology(EBL)andinductioncouplingplasma(ICP)etchingwereusedformakingthePCswith1550nmcentralwavelength.Anexperimentmodeisconstructedforanalyzingtemperaturecharacteristicofone-dimensionalPCs,andthenPCsisexperimentedatlowtemperatureandhightemperature.Itcanbefoundbyexperimentthat,asthetemperaturechanges,thecentralwavelengthofphotoniccrystalhasalinearrelationshipwiththetemperature,thedriftamountofcentralwavelengthatthelowtemperatureis0.072nm/°C,thedriftamountatthehightemperatureis0.076nm/°C,andthe3dBbandwidthoftransmissionspectrumofphotoniccrystalhasnosignificantchange,thespectralshapeischangedverylittle. 1299 Showing1to4of4PaperTitles Distribution&Access ForPublication Insights Downloads AboutUs Policy&Ethics ContactUs Imprint PrivacyPolicy Sitemap AllConferences AllSpecialIssues AllNews Scientific.NetisaregisteredbrandofTransTechPublicationsLtd©2022byTransTechPublicationsLtd.AllRightsReserved