fundamental optical studies of single crystalline dna nanoparticle superlattices

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1、NORTHWESTERNUNIVERSITYFundamentalOpticalStudiesofSingleCrystallineDNANanoparticleSuperlatticesADISSERTATIONSUBMITTEDTOTHEGRADUATESCHOOLINPARTIALFULFILLMENTOFTHEREQUIREMENTSforthedegreeDOCTOROFPHILOSOPHYFieldofChemistryByDanielJ.ParkEVANSTON,ILLINOISDecember2015Pro

2、QuestNumber:3741417AllrightsreservedINFORMATIONTOALLUSERSThequalityofthisreproductionisdependentuponthequalityofthecopysubmitted.Intheunlikelyeventthattheauthordidnotsendacompletemanuscriptandtherearemissingpages,thesewillbenoted.Also,ifmaterialhadtoberemoved,anot

3、ewillindicatethedeletion.ProQuest3741417PublishedbyProQuestLLC(2015).CopyrightoftheDissertationisheldbytheAuthor.Allrightsreserved.ThisworkisprotectedagainstunauthorizedcopyingunderTitle17,UnitedStatesCodeMicroformEdition©ProQuestLLC.ProQuestLLC.789EastEisenhowerP

4、arkwayP.O.Box1346AnnArbor,MI48106-13462©CopyrightbyDanielJ.Park2015AllRightsReserved3ABSTRACTFundamentalOpticalStudiesofSingleCrystallineDNANanoparticleSuperlatticesDanielJ.ParkThisthesisfocusesonunderstandingfundamentalnano-photonicpropertiesofsinglecrystallineDN

5、Ananoparticlesuperlattices.Here,thesinglecrystallineDNAnanoparticlesuperlatticesarestudied,forthefirsttime,inseveralimportantnano-photonicaspectssuchasstronglight-surfaceplasmoncoupling,crystalhabit-drivenlightscatteringandfocusing,andexciton-surfaceplasmoninterac

6、tion.Chapter1introducestheopticallyrelevantdegreesoffreedominsinglecrystallineDNAnanoparticlesuperlattices,afterbrieflyreviewingthesyntheticaspectsofDNAnanoparticlesuperlattices.Then,theoverviewandsignificanceofthisworkarediscussed.Chapter2discussesstronglight-sur

7、faceplasmoncouplingwithingoldnanoparticlesuperlattices.Anunconventionalphotonicbandgap(polaritonicgap)isestablishedduetothestrongcouplingratherthanthecrystaltranslationalsymmetry(Bragggap).Particularly,tunabilityofthecouplingstrengthisdemonstratedbycontrollingcrys

8、talconfigurationssuchaslatticeconstant.Chapter3furtherinvestigatesthelight-surfaceplasmoncouplingviathesuperlatticesmadewithanisotropicgoldnanoparticles