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基于磁化等离子体缺陷层的一维新颖可调谐的光子晶体滤波特性(英文).docx

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基于磁化等离子体缺陷层的一维新颖可调谐的光子晶体滤波特性(英文) One-DimensionalNovelTunablePhotonicCrystalFilteringCharacteristicsBasedonMagnetizedPlasmaDefectLayer Photoniccrystalshavebeenstudiedextensivelyasapromisingplatformfordevelopingawiderangeofphotonicdevices,includingfilters,waveguides,andlasers.Theabilitytotunethebandgapofthephotoniccrystalstructureallowsfortherealizationofdevicesthatcanproduceenhancedcontrolofthepropagationoflight.Recently,novelphotoniccrystalfiltershavebeenproposedbasedonmagnetizedplasmadefects,whichofferadditionaltunabilityandflexibilityindesigningtheopticalpropertiesofphotoniccrystals. Inthispaper,wepresentatheoreticalinvestigationofaone-dimensionalphotoniccrystalfilterbasedonamagnetizedplasmadefectlayer.Weintroduceadetailedtheoreticalmodelthatdescribestheelectromagneticpropertiesofthephotoniccrystalstructureusingthetransfermatrixmethod.Theproposedphotoniccrystalconsistsofastackofdielectriclayersarrangedalternativelywithadefectlayerthatcontainsamagnetizedplasmalayer. Theincorporationofmagnetizedplasmadefectlayersintothephotoniccrystalstructureoffersthepossibilityofachievingmoreefficientlightmanipulation,asthemagneticfieldstrengthofthemagnetizedplasmalayercanbetunedbyadjustingtheexternalmagneticfield.Additionally,thepropertiesofplasmacanbeexploitedtodynamicallytunethepropertiesofphotoniccrystals,whichcanleadtopracticalapplicationsinopticalcommunicationandsensing. Weanalyzethebandstructureoftheproposedphotoniccrystalfilterbyvaryingtheexternalmagneticfieldandthepropertiesofthemagnetizedplasmalayer.Wefindthatthepresenceofamagnetizedplasmalayercanopenupanewdefectmodeinthephotoniccrystalstructure,whichcanbetunedbyvaryingthemagneticfield.ThisdefectmoderesultsinamuchnarrowertransmissionpeakwithhigherQ-factor,comparedtotraditionaldefectmodes. Furthermore,weinvestigatetheroleofthethicknessofthedielectriclayerandtheplasmalayerinthephotoniccrystalfilter'sopticalproperties.Weshowthatthepositionandwidthofthedefectmodecanbeeffectivelycontrolledbyadjustingthedielectriclayerthicknes