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会计学Ultrashortlaserpulsesaretheshortesttechnologicaleventsevercreatedbyhumans.Todeterminethetemporalresolutionofanexperimentusingit.Todeterminewhetheritcanbemadeevenshorter.Tobetterunderstandthelasersthatemitthemandtoverifymodelsofultrashortpulsegeneration.Tobetterstudymedia:thebetterweknowthelightinandlightout,thebetterweknowthemediumwestudywiththem.Tousepulsesofspecificintensityandphasevs.timetocontrolchemicalreactions:“Coherentcontrol.”Tounderstandpulse-shapingeffortsfortelecommunications,etc.Becauseit’sthere.Exp’tAlaserpulsehasthetime-domainelectricfield:tddtPulseMeasurementintheTimeDomain:DetectorsPulseMeasurementintheTimeDomain:VaryingthepulsedelayWecanalsovarythedelayusingamirrorpairorcornercube.Okay,sohowdowemeasureapulse?PulseMeasurementintheTimeDomain:TheIntensityAutocorrelatorSingle-ShotAutocorrelationSingle-ShotAutocorrelationSingle-ShotAutocorrelationofLongerPulsesPracticalIssuesinAutocorrelationSquarePulseandItsAutocorrelationGaussianPulseandItsAutocorrelationLorentzianPulseandItsAutocorrelationAutocorrelationsofmorecomplexintensitiesAutocorr2Autocorrelationsofcomplexpulses:firstconsideradoublepulseAutocorrelationofVeryComplexPulsesPulseMeasurementinBothDomains:CombiningtheSpectrumandAutocorrelationAmbiguitiesinTIVI:PulseswiththeSameAutocorrelationandSpectrumAmbiguitiesinTIVI:MorePulseswiththeSameAutocorrelationandSpectrumWhenashorterreferencepulseisavailable:TheIntensityCross-CorrelationPulseMeasurementintheTimeDomain:TheInterferometricAutocorrelatorInterferometricAutocorrelationMathTheInterferometricAutocorrelationisthesumoffourdifferentquantities.InterferometricAutocorrelationandStabilizationInterferometricAutocorrelation:ExamplesDoestheinterferometricautocorrelationyieldthepulseintensityandphase?PulseswithVerySimilarInterferometricAutocorrelationsPulseswithVerySimilarInterferometricAutocorrelationsMorePulseswithSimilarInterferometricAutocorrelationsMorePulseswithSimilarInterferometricAutocorrelationsInterferometri