三維光子晶體的制備研究.pdf

1、復(fù)旦大學(xué)碩士學(xué)位論文三維光子晶體的制備研究姓名：陳杰申請學(xué)位級別：碩士專業(yè)：光學(xué)指導(dǎo)教師：徐雷2001.5.28●AbstractPhotonicCrystals(PC)isabrand—newkindofsynthesizedmaterialwhichhasaspatialmodulationofreflectiveindexn，atscaleofvisible1ight’swavelength(submicrometer)Accor

2、dingtoitsspatialperiodicity，PCcanbesortedin1DPc，2一DPc，3DPCBecauseofitsspecialstructure，PCintroducessomestrangephenomenaintophysics。suchasphotonicbandgap，superprismphenomena，prohibitedspontaneousemission，etcSincePC’sfirst

3、beingsuggestedin1987，moreandmoreattentionhasbeenpoureduponitfromtheoreticalphysics，optics，materialssciences，andsoonUpto163articlesdirectedconnectedwithPCwerelistedbySCI，6ofthemwerepublishedonSclencePCissurlyafocusofacade

4、micfield，egphysics，materialssciences，aswellasahotspotofindustrialinterests，justlikeopticalcomunication，photoelectronics，etcThisthesispresentsmyresearchonfabricationandcharacterizationofopalandinverse—opalstructurePCMainr

5、esultsare：1Diversewaystoprepareopalandinverse—opalstructurePCwereemployedMonodisperseSi02spheres，200—300nmindiameter，weresynthesizedbysol—geltechniqueSteady—stateunidirectionalconvectiveassemblingmethodandgravitydepositm

6、ethodwereappliedtopreparesinglelayersampleandthicklayersampleofclose—packedsi02spheresMonodispersepolystyrene(PS)spheresof200nmdiameterwereusedtofabricateinverse—opalstructurePCbygravitydepositAfterthedeposit，Ti02precurs

7、orwasinfiltratedintothevoidsbetweenthespherestoforminverse—opalstructurePCReflectionspectrum，transmissionspectrum，SEMresultsconfirmedwegotfinesamplesofinverse—opalstructurePC2Combinedwithsoftlithographytechniqueinverse—o

8、palstructurePCwithmicropatterucanbeachievedWefabricatedstrip一1ikePCsampleswithPSspheresAS酬picturerevealeditssurfaceis(111)offccstructureLasersofdifferentwavelengthwereintroducedintothestripbyopticalfiber，tomeasuretherela