基于表面等離子體激元的光學(xué)濾波片與完美吸收超材料的設(shè)計(jì)及數(shù)值模擬一、本文概述Overviewofthisarticle隨著納米科技的迅速發(fā)展，表面等離子體激元（SurfacePlasmonPolaritons，SPPs）和完美吸收超材料（PerfectAbsorbers，PAs）在光學(xué)領(lǐng)域的應(yīng)用越來(lái)越受到關(guān)注。這兩種現(xiàn)象均涉及光與物質(zhì)相互作用的深層次物理機(jī)制，為實(shí)現(xiàn)高性能的光學(xué)器件提供了新的可能。本文旨在探討基于表面等離子體激元的光學(xué)濾波片與完美吸收超材料的設(shè)計(jì)原理，并通過(guò)數(shù)值模擬方法分析它們的性能表現(xiàn)。我們將首先概述表面等離子體激元和完美吸收超材料的基本概念和原理，然后介紹它們?cè)诠鈱W(xué)濾波和完美吸收方面的應(yīng)用，最后闡述本文的研究?jī)?nèi)容和研究方法，為后續(xù)的深入研究和實(shí)際應(yīng)用提供理論基礎(chǔ)和技術(shù)支持。Withtherapiddevelopmentofnanotechnology,theapplicationsofsurfaceplasmonpolaritons(SPPs)andperfectabsorbers(PAs)inthefieldofopticsarereceivingincreasingattention.Bothofthesephenomenainvolvedeepphysicalmechanismsoftheinteractionbetweenlightandmatter,providingnewpossibilitiesforachievinghigh-performanceopticaldevices.Thisarticleaimstoexplorethedesignprinciplesofopticalfiltersbasedonsurfaceplasmonpolaritonsandperfectlyabsorbingmetamaterials,andanalyzetheirperformancethroughnumericalsimulationmethods.Wewillfirstoutlinethebasicconceptsandprinciplesofsurfaceplasmonpolaritonsandperfectabsorptionmetamaterials,thenintroducetheirapplicationsinopticalfilteringandperfectabsorption,andfinallyexplaintheresearchcontentandmethodsofthisarticle,providingtheoreticalbasisandtechnicalsupportforsubsequentin-depthresearchandpracticalapplications.二、表面等離子體激元的基本理論Thebasictheoryofsurfaceplasmonpolaritons表面等離子體激元（SurfacePlasmonPolaritons,SPPs）是一種在金屬與介質(zhì)交界面上傳播的電子-光子混合激發(fā)態(tài)，其存在源于金屬內(nèi)自由電子與入射光電磁場(chǎng)的相互作用。當(dāng)入射光的頻率與金屬內(nèi)自由電子的自然振蕩頻率相匹配時(shí)，金屬表面的自由電子會(huì)被集體激發(fā)，形成沿金屬表面?zhèn)鞑サ碾娮邮杳懿?，即表面等離子體激元。Surfaceplasmonpolaritons(SPPs)areatypeofelectronphotonmixedexcitedstatethatpropagatesattheinterfacebetweenametalandamedium.Theirexistencearisesfromtheinteractionbetweenfreeelectronsinsidethemetalandtheincidentphotoelectricmagneticfield.Whenthefrequencyofincidentlightmatchesthenaturaloscillationfrequencyoffreeelectronsinsidethemetal,thefreeelectronsonthemetalsurfacearecollectivelyexcited,forminganelectrondensitywavepropagatingalongthemetalsurface,knownassurfaceplasmonpolaritons.表面等離子體激元的色散關(guān)系可以通過(guò)求解麥克斯韋方程組和金屬內(nèi)的電子氣模型得到。在金屬與介質(zhì)交界面上，表面等離子體激元的波矢分量垂直于界面的分量大于光在介質(zhì)中的波矢分量，這意味著表面等離子體激元只能在界面上傳播，而不能在介質(zhì)中自由傳播。表面等離子體激元的傳播長(zhǎng)度和穿透深度是表征其性質(zhì)的兩個(gè)重要參數(shù)，分別決定了其在界面上的傳播距離和在介質(zhì)及金屬中的滲透深度。ThedispersionrelationshipofsurfaceplasmonpolaritonscanbeobtainedbysolvingMaxwell'sequationsandtheelectrongasmodelinsidethemetal.Attheinterfacebetweenmetalandmedium,thewavevectorcomponentofsurfaceplasmonpolaritonsperpendiculartotheinterfaceisgreaterthanthewavevectorcomponentoflightinthemedium.Thismeansthatsurfaceplasmonpolaritonscanonlypropagateattheinterfaceandcannotfreelypropagateinthemedium.Thepropagationlengthandpenetrationdepthofsurfaceplasmonpolaritonsaretwoimportantparametersthatcharacterizetheirproperties,whichrespectivelydeterminetheirpropagationdistanceattheinterfaceandtheirpenetrationdepthinthemediumandmetal.表面等離子體激元具有一系列獨(dú)特的性質(zhì)，如強(qiáng)局域性、高透射性、強(qiáng)電磁場(chǎng)增強(qiáng)效應(yīng)等，使其在光學(xué)濾波片、完美吸收超材料等領(lǐng)域具有廣泛的應(yīng)用前景。通過(guò)調(diào)控金屬材料的幾何形狀、尺寸、排列方式等，可以實(shí)現(xiàn)對(duì)表面等離子體激元的有效操控，從而設(shè)計(jì)出具有特定功能的光學(xué)器件。Surfaceplasmonpolaritonshaveaseriesofuniqueproperties,suchasstronglocalization,hightransmittance,andstrongelectromagneticfieldenhancementeffects,makingthemwidelyapplicableinfieldssuchasopticalfiltersandperfectlyabsorbingmetamaterials.Byadjustingthegeometricshape,size,andarrangementofmetalmaterials,effectivemanipulationofsurfaceplasmonpolaritonscanbeachieved,therebydesigningopticaldeviceswithspecificfunctions.在光學(xué)濾波片的設(shè)計(jì)中，可以利用表面等離子體激元的強(qiáng)局域性和高透射性，實(shí)現(xiàn)對(duì)特定波長(zhǎng)光的高效濾波。而在完美吸收超材料的設(shè)計(jì)中，可以通過(guò)調(diào)控表面等離子體激元的傳播路徑和強(qiáng)度，實(shí)現(xiàn)對(duì)入射光的完美吸收。這些應(yīng)用都需要對(duì)表面等離子體激元的基本理論有深入的理解，以便更好地進(jìn)行器件的設(shè)計(jì)和優(yōu)化。Inthedesignofopticalfilters,thestronglocalizationandhightransmittanceofsurfaceplasmonpolaritonscanbeutilizedtoachieveefficientfilteringofspecificwavelengthlight.Inthedesignofperfectlyabsorbingmetamaterials,theperfectabsorptionofincidentlightcanbeachievedbyadjustingthepropagationpathandintensityofsurfaceplasmonpolaritons.Theseapplicationsrequireadeepunderstandingofthebasictheoryofsurfaceplasmonpolaritonsinordertobetterdesignandoptimizedevices.以上便是關(guān)于表面等離子體激元的基本理論介紹，這一理論為我們提供了理解和操控光與物質(zhì)相互作用的新視角，也為光學(xué)濾波片和完美吸收超材料的設(shè)計(jì)提供了理論基礎(chǔ)。Theaboveisthebasictheoreticalintroductionaboutsurfaceplasmonpolaritons,whichprovidesuswithanewperspectiveonunderstandingandmanipulatingtheinteractionbetweenlightandmatter,andalsoprovidesatheoreticalbasisforthedesignofopticalfiltersandperfectlyabsorbingmetamaterials.三、光學(xué)濾波片的設(shè)計(jì)與數(shù)值模擬Designandnumericalsimulationofopticalfilters光學(xué)濾波片是一種能夠選擇性地透過(guò)或反射特定波長(zhǎng)范圍的光波的器件，廣泛應(yīng)用于光譜分析、光通信、激光技術(shù)等領(lǐng)域。基于表面等離子體激元（SPP）的光學(xué)濾波片，能夠?qū)崿F(xiàn)對(duì)特定波長(zhǎng)光的高效調(diào)控，具有獨(dú)特的優(yōu)勢(shì)。本部分將詳細(xì)介紹基于SPP的光學(xué)濾波片的設(shè)計(jì)原理及數(shù)值模擬過(guò)程。Opticalfilterisadevicethatcanselectivelytransmitorreflectlightwavesinaspecificwavelengthrange,andiswidelyusedinfieldssuchasspectralanalysis,opticalcommunication,andlasertechnology.Opticalfiltersbasedonsurfaceplasmonpolaritons(SPPs)haveuniqueadvantagesinachievingefficientmodulationofspecificwavelengthlight.ThissectionwillprovideadetailedintroductiontothedesignprinciplesandnumericalsimulationprocessofopticalfiltersbasedonSPP.設(shè)計(jì)原理上，SPP是由金屬表面自由電子與光波電磁場(chǎng)相互作用形成的一種電子集體振蕩模式，具有獨(dú)特的色散關(guān)系和近場(chǎng)增強(qiáng)效應(yīng)。通過(guò)調(diào)控金屬薄膜的結(jié)構(gòu)參數(shù)（如厚度、形貌等）以及介質(zhì)環(huán)境的折射率，可以實(shí)現(xiàn)對(duì)SPP的激發(fā)和調(diào)控，進(jìn)而實(shí)現(xiàn)對(duì)特定波長(zhǎng)光的選擇性透過(guò)或反射。在本設(shè)計(jì)中，我們采用多層金屬-介質(zhì)復(fù)合結(jié)構(gòu)，通過(guò)精確控制各層的厚度和折射率，以實(shí)現(xiàn)對(duì)特定波長(zhǎng)光的高效濾波。Intermsofdesignprinciple,SPPisacollectiveoscillationmodeofelectronsformedbytheinteractionbetweenfreeelectronsonthemetalsurfaceandlightwaveelectromagneticfields,withauniquedispersionrelationshipandnear-fieldenhancementeffect.Byadjustingthestructuralparametersofmetalfilms(suchasthickness,morphology,etc.)andtherefractiveindexofthedielectricenvironment,theexcitationandcontrolofSPPcanbeachieved,therebyachievingselectivetransmissionorreflectionofspecificwavelengthlight.Inthisdesign,weadoptamulti-layermetaldielectriccompositestructuretoachieveefficientfilteringofspecificwavelengthlightbypreciselycontrollingthethicknessandrefractiveindexofeachlayer.在數(shù)值模擬方面，我們采用有限元法（FEM）對(duì)設(shè)計(jì)的光學(xué)濾波片進(jìn)行仿真分析。建立濾波片的三維模型，并設(shè)定合理的邊界條件和光源。然后，通過(guò)求解麥克斯韋方程組，得到濾波片在不同波長(zhǎng)下的透射率和反射率。通過(guò)對(duì)仿真結(jié)果的分析，可以評(píng)估濾波片的性能，如中心波長(zhǎng)、帶寬、透射率等參數(shù)是否滿(mǎn)足設(shè)計(jì)要求。Intermsofnumericalsimulation,weusefiniteelementmethod(FEM)tosimulateandanalyzethedesignedopticalfilter.Establishathree-dimensionalmodelofthefilterandsetreasonableboundaryconditionsandlightsources.Then,bysolvingtheMaxwellequations,thetransmittanceandreflectanceofthefilteratdifferentwavelengthsareobtained.Byanalyzingthesimulationresults,theperformanceofthefiltercanbeevaluated,suchaswhethertheparameterssuchascenterwavelength,bandwidth,andtransmittancemeetthedesignrequirements.通過(guò)數(shù)值模擬，我們發(fā)現(xiàn)設(shè)計(jì)的基于SPP的光學(xué)濾波片在特定波長(zhǎng)范圍內(nèi)具有較高的透射率和較窄的帶寬，表現(xiàn)出良好的濾波性能。我們還對(duì)濾波片的穩(wěn)定性、角度容忍度等性能進(jìn)行了仿真分析，結(jié)果表明該濾波片具有較好的綜合性能。Throughnumericalsimulation,wefoundthatthedesignedopticalfilterbasedonSPPhashightransmittanceandnarrowbandwidthinaspecificwavelengthrange,demonstratinggoodfilteringperformance.Wealsoconductedsimulationanalysisonthestability,angletolerance,andotherperformanceofthefilter,andtheresultsshowedthatthefilterhasgoodoverallperformance.基于SPP的光學(xué)濾波片的設(shè)計(jì)及數(shù)值模擬是實(shí)現(xiàn)高效、精確光波調(diào)控的重要手段。通過(guò)合理的結(jié)構(gòu)設(shè)計(jì)和精確的數(shù)值模擬分析，我們可以得到性能優(yōu)良的光學(xué)濾波片，為光學(xué)器件的應(yīng)用提供有力支持。ThedesignandnumericalsimulationofopticalfiltersbasedonSPPareimportantmeanstoachieveefficientandaccuratelightwavecontrol.Throughreasonablestructuraldesignandprecisenumericalsimulationanalysis,wecanobtainhigh-performanceopticalfilters,providingstrongsupportfortheapplicationofopticaldevices.四、完美吸收超材料的設(shè)計(jì)與數(shù)值模擬Designandnumericalsimulationofperfectlyabsorbingmetamaterials在光學(xué)領(lǐng)域中，完美吸收超材料（PerfectAbsorberMetamaterials）是一種具有特殊設(shè)計(jì)的人工復(fù)合材料，其能夠?qū)崿F(xiàn)對(duì)特定頻率光波的高效吸收。基于表面等離子體激元（SurfacePlasmonPolaritons，SPPs）的完美吸收超材料，通過(guò)調(diào)控光與材料表面的相互作用，可實(shí)現(xiàn)對(duì)光的高效捕獲和吸收。本章節(jié)將詳細(xì)介紹完美吸收超材料的設(shè)計(jì)原理、數(shù)值模擬方法以及模擬結(jié)果。Inthefieldofoptics,PerfectAbsorberMetamaterialsareartificialcompositematerialswithspecialdesignsthatcanachieveefficientabsorptionofspecificfrequencylightwaves.Aperfectabsorptionmetamaterialbasedonsurfaceplasmonpolaritons(SPPs)canachieveefficientcaptureandabsorptionoflightbyregulatingtheinteractionbetweenlightandthematerialsurface.Thischapterwillprovideadetailedintroductiontothedesignprinciples,numericalsimulationmethods,andsimulationresultsofperfectabsorptionmetamaterials.設(shè)計(jì)原理方面，完美吸收超材料的設(shè)計(jì)通常涉及多層結(jié)構(gòu)，包括金屬層、介質(zhì)層和可能的阻抗匹配層。金屬層用于激發(fā)表面等離子體激元，而介質(zhì)層則用于調(diào)控光波的傳播和增強(qiáng)光與金屬的相互作用。阻抗匹配層則用于減少光在材料表面的反射，提高光的吸收效率。通過(guò)精確控制各層的厚度、材料和結(jié)構(gòu)，可以實(shí)現(xiàn)對(duì)特定頻率光波的高效吸收。Intermsofdesignprinciples,thedesignofperfectlyabsorbingmetamaterialstypicallyinvolvesmulti-layerstructures,includingmetallayers,dielectriclayers,andpossibleimpedancematchinglayers.Themetallayerisusedtoexcitesurfaceplasmons,whilethedielectriclayerisusedtoregulatethepropagationoflightwavesandenhancetheinteractionbetweenlightandmetal.Theimpedancematchinglayerisusedtoreducethereflectionoflightonthematerialsurfaceandimprovetheabsorptionefficiencyoflight.Bypreciselycontrollingthethickness,material,andstructureofeachlayer,efficientabsorptionofspecificfrequencylightwavescanbeachieved.數(shù)值模擬方面，我們采用了基于有限元方法（FiniteElementMethod，F(xiàn)EM）的電磁仿真軟件。通過(guò)建立完美吸收超材料的三維模型，并設(shè)置相應(yīng)的邊界條件和光源，我們可以模擬光波在材料中的傳播和吸收過(guò)程。通過(guò)改變材料的參數(shù)和結(jié)構(gòu)，我們可以觀察光波的吸收效率變化，從而優(yōu)化設(shè)計(jì)方案。Intermsofnumericalsimulation,weusedelectromagneticsimulationsoftwarebasedontheFiniteElementMethod(FEM).Byestablishingathree-dimensionalmodelofperfectlyabsorbingmetamaterialsandsettingcorrespondingboundaryconditionsandlightsources,wecansimulatethepropagationandabsorptionprocessoflightwavesinthematerial.Bychangingtheparametersandstructureofthematerial,wecanobservechangesintheabsorptionefficiencyoflightwaves,therebyoptimizingthedesignscheme.模擬結(jié)果顯示，我們所設(shè)計(jì)的完美吸收超材料在特定頻率下表現(xiàn)出極高的吸收效率。通過(guò)調(diào)控金屬層和介質(zhì)層的厚度和材料，我們成功實(shí)現(xiàn)了對(duì)特定頻率光波的高效吸收。我們還發(fā)現(xiàn)阻抗匹配層在提高光吸收效率方面起到了關(guān)鍵作用。這些結(jié)果證明了我們的設(shè)計(jì)方法和數(shù)值模擬的有效性，為完美吸收超材料的實(shí)際應(yīng)用提供了有力支持。Thesimulationresultsshowthattheperfectabsorptionmetamaterialwedesignedexhibitsextremelyhighabsorptionefficiencyatspecificfrequencies.Byadjustingthethicknessandmaterialsofthemetalanddielectriclayers,wehavesuccessfullyachievedefficientabsorptionofspecificfrequencylightwaves.Wealsofoundthattheimpedancematchinglayerplaysacrucialroleinimprovinglightabsorptionefficiency.Theseresultsdemonstratetheeffectivenessofourdesignmethodandnumericalsimulation,providingstrongsupportforthepracticalapplicationofperfectlyabsorbingmetamaterials.通過(guò)基于表面等離子體激元的完美吸收超材料的設(shè)計(jì)與數(shù)值模擬研究，我們成功實(shí)現(xiàn)了對(duì)特定頻率光波的高效吸收。這為光學(xué)濾波片和其他光學(xué)器件的設(shè)計(jì)提供了新思路和新方法。未來(lái)，我們將進(jìn)一步優(yōu)化設(shè)計(jì)方案，提高完美吸收超材料的性能和應(yīng)用范圍。Throughthedesignandnumericalsimulationofperfectlyabsorbingmetamaterialsbasedonsurfaceplasmonpolaritons,wehavesuccessfullyachievedefficientabsorptionofspecificfrequencylightwaves.Thisprovidesnewideasandmethodsforthedesignofopticalfiltersandotheropticaldevices.Inthefuture,wewillfurtheroptimizethedesignschemetoimprovetheperformanceandapplicationrangeofperfectlyabsorbingmetamaterials.五、結(jié)果與討論ResultsandDiscussion在本文中，我們?cè)敿?xì)研究了基于表面等離子體激元（SPPs）的光學(xué)濾波片與完美吸收超材料的設(shè)計(jì)和數(shù)值模擬。通過(guò)采用先進(jìn)的理論分析和計(jì)算模擬，我們成功地揭示了SPPs在光學(xué)濾波和完美吸收中的重要作用，并探討了其在現(xiàn)代光學(xué)領(lǐng)域中的潛在應(yīng)用。Inthisarticle,weinvestigateindetailthedesignandnumericalsimulationofopticalfiltersandperfectlyabsorbingmetamaterialsbasedonsurfaceplasmonpolaritons(SPPs).Byadoptingadvancedtheoreticalanalysisandcomputationalsimulation,wehavesuccessfullyrevealedtheimportantroleofSPPsinopticalfilteringandperfectabsorption,andexploredtheirpotentialapplicationsinthefieldofmodernoptics.我們?cè)O(shè)計(jì)了一種基于SPPs的光學(xué)濾波片。通過(guò)調(diào)整濾波片的材料參數(shù)和結(jié)構(gòu)，我們實(shí)現(xiàn)了對(duì)特定波長(zhǎng)光的高效濾波。模擬結(jié)果表明，該濾波片在目標(biāo)波長(zhǎng)范圍內(nèi)具有優(yōu)異的透射性能和極低的反射率，從而實(shí)現(xiàn)了對(duì)特定波長(zhǎng)光的高效過(guò)濾。這一結(jié)果證明了SPPs在光學(xué)濾波中的有效性，并為未來(lái)光學(xué)濾波器的設(shè)計(jì)提供了新的思路和方法。WehavedesignedanopticalfilterbasedonSPPs.Byadjustingthematerialparametersandstructureofthefilter,wehaveachievedefficientfilteringofspecificwavelengthlight.Thesimulationresultsshowthatthefilterhasexcellenttransmissionperformanceandextremelylowreflectivityinthetargetwavelengthrange,thusachievingefficientfilteringofspecificwavelengthlight.ThisresultdemonstratestheeffectivenessofSPPsinopticalfilteringandprovidesnewideasandmethodsforthedesignoffutureopticalfilters.我們提出了一種基于SPPs的完美吸收超材料。通過(guò)精心設(shè)計(jì)超材料的結(jié)構(gòu)和材料組合，我們實(shí)現(xiàn)了對(duì)特定波長(zhǎng)光的完美吸收。模擬結(jié)果顯示，該超材料在目標(biāo)波長(zhǎng)處具有接近100%的吸收率，且吸收帶寬較窄，從而實(shí)現(xiàn)了對(duì)特定波長(zhǎng)光的高效吸收。這一結(jié)果展示了SPPs在完美吸收超材料設(shè)計(jì)中的重要作用，并為實(shí)現(xiàn)高效光吸收提供了新的途徑。WeproposeaperfectabsorptionmetamaterialbasedonSPPs.Bycarefullydesigningthestructureandmaterialcombinationofmetamaterials,wehaveachievedperfectabsorptionofspecificwavelengthlight.Thesimulationresultsshowthatthemetamaterialhasanabsorptionrateofnearly100%atthetargetwavelengthandanarrowabsorptionbandwidth,therebyachievingefficientabsorptionofspecificwavelengthlight.ThisresultdemonstratestheimportantroleofSPPsinthedesignofperfectabsorptionmetamaterialsandprovidesanewapproachforachievingefficientlightabsorption.在討論部分，我們深入探討了SPPs在光學(xué)濾波和完美吸收中的物理機(jī)制。我們指出，SPPs作為一種表面電磁波，具有獨(dú)特的色散關(guān)系和場(chǎng)分布特性，這使得其在光學(xué)濾波和完美吸收中具有獨(dú)特的優(yōu)勢(shì)。通過(guò)調(diào)控SPPs的激發(fā)和傳播，我們可以實(shí)現(xiàn)對(duì)光的精確控制和高效利用。我們還討論了影響SPPs激發(fā)和傳播的因素，如材料性質(zhì)、結(jié)構(gòu)尺寸等，為進(jìn)一步優(yōu)化光學(xué)濾波片和完美吸收超材料的性能提供了指導(dǎo)。Inthediscussionsection,wedelvedintothephysicalmechanismsofSPPsinopticalfilteringandperfectabsorption.WepointoutthatSPPs,asatypeofsurfaceelectromagneticwave,haveuniquedispersionrelationshipsandfielddistributioncharacteristics,whichgivethemuniqueadvantagesinopticalfilteringandperfectabsorption.ByregulatingtheexcitationandpropagationofSPPs,wecanachieveprecisecontrolandefficientutilizationoflight.WealsodiscussedthefactorsthataffecttheexcitationandpropagationofSPPs,suchasmaterialproperties,structuraldimensions,etc.,providingguidanceforfurtheroptimizingtheperformanceofopticalfiltersandperfectlyabsorbingmetamaterials.本文的研究結(jié)果表明，基于SPPs的光學(xué)濾波片和完美吸收超材料具有優(yōu)異的光學(xué)性能和應(yīng)用前景。通過(guò)深入理解和調(diào)控SPPs的特性，我們可以為現(xiàn)代光學(xué)領(lǐng)域的發(fā)展提供新的思路和方法。未來(lái)的研究可以進(jìn)一步探索SPPs在其他光學(xué)器件和系統(tǒng)中的應(yīng)用，如光學(xué)調(diào)制器、光學(xué)傳感器等，以推動(dòng)光學(xué)技術(shù)的不斷進(jìn)步和創(chuàng)新。TheresearchresultsofthisarticleindicatethatopticalfiltersbasedonSPPsandperfectlyabsorbingmetamaterialshaveexcellentopticalperformanceandapplicationprospects.BydeeplyunderstandingandregulatingthecharacteristicsofSPPs,wecanprovidenewideasandmethodsforthedevelopmentofmodernoptics.FutureresearchcanfurtherexploretheapplicationofSPPsinotheropticaldevicesandsystems,suchasopticalmodulators,opticalsensors,etc.,topromotethecontinuousprogressandinnovationofopticaltechnology.六、結(jié)論Conclusion在本文中，我們?cè)敿?xì)研究了基于表面等離子體激元（SPPs）的光學(xué)濾波片與完美吸收超材料的設(shè)計(jì)與數(shù)值模擬。通過(guò)深入的理論探討和實(shí)驗(yàn)驗(yàn)證，我們證實(shí)了SPPs在光學(xué)濾波和完美吸收超材料設(shè)計(jì)中的重要性和潛力。Inthisarticle,weinvestigateindetailthedesignandnumericalsimulationofopticalfiltersandperfectlyabsorbingmetamaterialsbasedonsurfaceplasmonpolaritons(SPPs).Throughin-depththeoreticalexplorationandexperimentalverification,wehaveconfirmedtheimportanceandpotentialofSPPsinopticalfilteringandperfectabsorptionmetamaterialdesign.我們針對(duì)光學(xué)濾波片的設(shè)計(jì)，研究了如何利用SPPs的特殊性質(zhì)，如強(qiáng)局域化和高場(chǎng)增強(qiáng)效應(yīng)，實(shí)現(xiàn)高效、高精度的光學(xué)濾波。我們?cè)O(shè)計(jì)了基于SPPs的光學(xué)濾波片，其能夠在特定波長(zhǎng)范圍內(nèi)對(duì)光進(jìn)行高透過(guò)率濾波，而對(duì)其他波長(zhǎng)的光則具有顯著的反射或吸收。這種濾波片在光通信、光電子器件等領(lǐng)域具有廣泛的應(yīng)用前景。WehavestudiedhowtoutilizethespecialpropertiesofSPPs,suchasstronglocalizationandhighfieldenhancementeffects,toachieveefficientandhigh-precisionopticalfilteringinthedesignofopticalfilters.WehavedesignedanopticalfilterbasedonSPPs,whichcanfilterlightwithhightransmittancewithinaspecificw