12526.基于寬光譜差分干涉的等離子體相位測(cè)量原理研究

1、聲明本學(xué)位論文是我在導(dǎo)師的指導(dǎo)下取得的研究成果，盡我所知，在本學(xué)位論文中，除了加以標(biāo)注和致謝的部分外，不包含其他人已經(jīng)發(fā)表或公布過的研究成果，也不包含我為獲得任何教育機(jī)構(gòu)的學(xué)位或?qū)W歷而使用過的材料。與我一同工作的同事對(duì)本學(xué)位論文做出的貢獻(xiàn)均已在論文中作了明確的說明。研究生簽名：三茗姒2。16年；月，影日學(xué)位論文使用授權(quán)聲明南京理工大學(xué)有權(quán)保存本學(xué)位論文的電子和紙質(zhì)文檔，可以借閱或上網(wǎng)公布本學(xué)位論文的部分或全部?jī)?nèi)容，可以向有關(guān)部門或機(jī)構(gòu)送

2、交并授權(quán)其保存、借閱或上網(wǎng)公布本學(xué)位論文的部分或全部?jī)?nèi)容。對(duì)于保密論文，按保密的有關(guān)規(guī)定和程序處理。研究生簽名：寫型絲么2016年徊驢日AbstractTheprincipleofopticalinterferometrymethodutilizedtomeasurelaserinducedplasmaissl姍m撕zedinthispaperandmoredetailedinformationaboutextractionmethod

3、andcalcu【lationstepofopticalfieldphasemodulatedbyplasmaarediscussedaswellTocalculateelectrondensityoftheplasma，thispapergivestheopticalinterferencemethod、vhichcanmeasuretherefractiveindexofplasmawhilesimultaneouslystudyi

4、ngthecorrespondingcalculationprocedureandalgorithmTheshearinginterferometryusingsupercontinuumsourcesisproposedonthebasisoftheoreticalresearchonrefractiveindexpropertiesofincompleteionizationplasmaBasedonplasmaexcitation

5、mechanism，thispaperdeducestherelationshipbetweentheplasmaelectrons，ionsandneutralatomsandrefractiveindexofincompleteionizationplasma，puttingforwardmecalculationmethodofplasmaelectrondensitybyestablishingtheplasmadensitye

6、quationmeasuredthroughthreekindsofwavelengthlaserwhichcallnotonlyiII]lprovethemeasurememprecisionoffreeelectrondensityofplasmabutalsocancalculateiondensityandneutraldensityinplasmaSOthatthispaperalsoprovidesafeasiblemeaL

7、surementbasedontheionizationdegreeofplasmaBecausetheplasmaISusuallygeneratedinminusculespatiotemporalscale，thetraditionalopticalinterferometrycanhardlydetecttheinfbnnationaboutplasmaphasewithmultiplefrequencyatthesametim

8、eInordertoobtainphaseinformationofplasmainthewidespectrumatacertainmoment，thispaperdesignsabroadeningspectrumdetectionmethodbyusingblazedgratingfordispresingthespectrumThispaperestablishesthetheorymodelofacompletediffere

9、ntialinterferometrybyus諏supercontinuumsources，andthismethodisusedtocomputecoherentparameterandt11e鋤ountofdataTosatisfytherequirementsofdetectingnanosecondlaserinducedairplasma，thispaperdesignsaopticalpathbasedonthediffer

10、entialinterferometrymeasurementmetllodwiththeopticalpathclose，resistingdisturbanceandmeasunngwavephaseatrealtimeThispamisbuiltonthecharacteristicsofplasmaphasegradientinformation，whichCanbesuitableforsomehigherdemandslik

11、eshockortemperaturesensitiveconditionThispaperalsodiscussestheinfluenceofwavelength，theshearingangleandthedetectionraJlgeonplasmadifferentialinterferenceimageinformation，andcalculatetheresolutionlimitofdetectioncomponent