后向散射Mueller矩陣數(shù)值模擬及實驗方法在散射介質(zhì)光學(xué)特性識別中的應(yīng)用.pdf

1、Y’68784學(xué)校編號：!鰹2壘學(xué)號：—2002—271圖書分類號：04_23福建師范大學(xué)碩士學(xué)位論文后向散射Mueller矩陣數(shù)值模擬及實驗方法在散射介質(zhì)光學(xué)特性識別中的應(yīng)用SimulationandExperimentalMethodsofBackscatteredMuellerMatrixforDiscriminationofOpticalPropertyinTurbidMedia學(xué)科專業(yè)：研究方向：指導(dǎo)教師：申請學(xué)位級別：徐蘭青

2、塞堂生塹匡堂堂堂奎豎塾蕉遂撾盎熬攮墨堂塑論文提交日期；論文評閱人：論文答辯日期：答辯委員會主席：學(xué)位授予單位：學(xué)位授予日期：二oo五年五月星QQ晝生曼目握蕉趣煎太堂星魚Q曼璽墾旦ABSTRACTPolarmedpropertyofturbidmediacanbewelldescribedbyMueUermatrixInthisthesisthepropagationofpolarizedlightinturbidmediawasdisc

3、ussedusingStokesMuellerformalism，MiescatteringtheoryandMonteCarlo(MC)methodApplicationofbackscatteredMuellermatrixinpropertydiscriminationwareinvestigatedfirstbyMCsimulationandlatervalidatedbycorrespondingexperimentsMies

4、catteringtheorywasappliedtoacquirepolarizedscatteringmodel，StokesMuellerformalismwaschosetodescribepropagationcharacterofpolarizedlightThesetwotheorieswereimbeddedinstandardWangJacquesMCmodelandacalculationalgorithmwaspr

5、esentedtosimulatethepolarizedlightpropagationinturbidmediaRelationshipbetweenbackscatteredMuellermatrixandscatteringabsorption，layeredstructure，chiralenvironmentandhiddenobjectwerediscussedindetail，resulBshowedthateachpa

6、rameterhasindividualeffectsScatteringproduceaspatialredistributionoflight，whileabsorptiononlycauseauniformdecreaseinintensityThemajorcontributiontobackscaReredMueUermatrixconlesfromballisticandquasi—ballisticphotonsScatt

7、eringandabsorptionwereanalyzedatfirstAsscatteringenhancesthemajorityofthesephotonsexitfromaroundthecentre，resultinimageinteusityincreasearoundthecentreanddecreaseintheedgeForabsorptions仃engthenonlyinteusityweakeningWaSob

8、servedBothcartbeeasilydifferentiatedbyMuellermtrixdistributionpaaemsAtwolayermodelwasalsocalculatedMuellermatrixrepresentdisparatealterantruleforupperandlowerlayerwhichsuggestpossibilitiesfordiscriminatingsubtleepidermal

9、structureFurthermore，ahiddenobjectwithdifferentreflectionregionwasstudiedanddopdistributiongavecleardistinctnessbetweenregionsFinallytheinteractionofpolarizedlightandglnoosedissolvedchiralmediawerediscussed，Muellermatrix

10、presenthigheropticalrotationasglucoseaugmentedBasedontheaboveinvestigation，twovalidateexperimentswerecarriedoutBackscatteredMuellermatrixofintralit)idtissuephantomwasmeasuredanddifierentconcentrationgavedifferentpatterns

11、DopofbackscatteredlightfromthreehiddenobcotsintheintralipidphantomwerealSOcalculatedandcontrastsareclearBethexperimentalresultsshowedgoodagreementwithsimulationconclusionsKeywords：turbidmedia，polarizedlight，backscatterMu