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1、ManipulatingSurfacePlasmonPolaritonsonthemeta-surface1123111ZhengjiXu,DaoHuaZhang*,TaoLi,ChangchunYan,DongdongLi,YuekeWangandFeiQin1SchoolofElectrical&ElectronicEngineering,NanyangTechnologicalUniversity,NanyangAvenue,639798,Singapore2NationalLaboratoryofSolidStateMicrostructures,CollegeofPh
2、ysics,CollegeofEngineeringandAppliedSciences,NanjingUniversity,Nanjing210093,China3SchoolofPhysicsandElectronicEngineering,JiangsuNormalUniversity,221116,China*Correspondingauthor:edhzhang@ntu.edu.sgAbstractonwhichthegratingsare1umlong,150nmwideand210nmdeep,thedistancebetweeneachgratings'mid
3、dleaxisisWeproposedaconceptofmeta-surfacecomposedof610nm.SPPislaunchedbythelightpenetratethroughthesub-wavelengthgroovearraysingoldfilmonchromium(Cr)gratings.TheSPPwillpropagatetobothdirections.Thelayerwithdesignableparameters,whichallowsforflexiblesub-wavelengthgroovearraysare150nmdeep.Each
4、grooveismanipulationsoftheSurfacePlasmonPolaritons(SPPs).The50nmwideand3umlong.TheperiodofgroovearraysisaSPPpropagationanddispersionpropertiesweresystematicallyvariableP.Pisvariedfrom110nm,130nmto150nm.Fig1(b)studiedinthetheoreticalmeta-surfaceschemebynumericalisillustratingtheperspectivevie
5、wofourmodel.The633nmsimulations.Fordetails,aconventionalSPPwaveonmetallinearlypolarizedincidenceisilluminatedatthebackofthesubstrate.surfacewaslaunchedbyapropergratingandthenincidentWedooursimulationusingafiniteelementmethod.Intheontothemeta-surface.Adoptingperiodicstructuralparameters,simul
6、ations,theincidencewaveiswithanelectricfieldof1Vwefindthesurfacewavescanbesplitintotwobeamswithin-1.mItisassumedtobethenormalincidentsource.Thethestructure,whichdependsonthespecificdesigns.ThispermittivitiesofgoldandCrusedare-9.586+1.18iand-13.2phenomenonisvalidinvisiblewavelengthof633nm.Our
7、+14.6i,respectively,atthisincidentwavelength[12,13].Themeta-surfacedesignwouldopenanewavenueinmanipulatingperformanceofthemeta-surfaceinvestigatedasPisvaried.thesurfacewaveandholdthepromisetodevelopnewkindsofThegeneralizedminimalresidualmethod(GMRE
