基于石英微毛细管的微流控光学器件-研究

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1、华中科技大学硕士学位论文AbstractAsonenovelkindoffunctionalphotonicdevices,optofluidicdevicessimultaneouslyintegratebothmicrofluidictechniquesandphotonicdeviceswithamicrosystem,andenablethesynergismofliquid-phasematerialsandsolidopticssystem.Optofluidicdevicesgreatlyenhancetunability,reconfigurabilityandint

2、egratedfunctionality,andalsobroadenapplicationareasandresearchpotentials.Theoreticalandexperimentalinvestigationsonsilica-microcapillary-basedoptofluidicdevicesarecarriedout.Maincontentsofthisthesisaresummarizedasfollows:Theresearchbackgroundandsignificanceofoptofluidicsareintroduced,andresearc

3、hhighlightsonoptofluidicdevicesbasedonsilicamicapillariesaresummarized,alongwiththeirinherentstructurefeatures,schemesandapplications.Boththeoreticalandexperimentalstudyareperformedtoinvestigatethestructuralfeaturesandopticalpropertiesofringresonatorsbasedonsilicamicrocapillaries.Anall-opticalt

4、unableoptofluidicringresonatorisproposed,anddetailedoperationschemeandfabricationareintroduced.Thisall-opticalcontrollabledeviceachievesalargetuningrangeofupto3.3nm,aswellasagoodsensitivityof0.15nm/mW,takingadvantagesofthephotothermaleffectofmagneticfluid,andopticspropertiesoftheresonatorscheme

5、.Anoptofluidicpolarizationbeamsplitterbasedonamicrocapillaryispresented.Basedontheanalysisandstudyofthepolarization-dependentcharacteristicofthewhisperinggallerymodeswithinamicrotuberesonator,microfibersareadoptedtorealizeanadd-dropringresonator.Thissplitterisabletoseparatetwoorthogonalpolariza

6、tionbeams,andtoachieveanopticalspectrumwithextinctionratiosof25dBand10dBatthethroughanddownloadport,respectively.Keywords:OptofluidicsMicrocapillaryOpticalmicrofiberOptofluidicringresonatorPolarizationbeamsplitterII华中科技大学硕士学位论文目录摘要................................................................

7、..................................................IAbstract................................................................................................................II1绪论1.1引言.................................................