coherent x-ray science coherence, imaging & molecules相干x射线科学的连贯性，分子成像&amp；

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1、KeithA.NugentARCCentreofExcellenceforCoherentX-rayScience&SchoolofPhysicsTheUniversityofMelbourneAustraliaCoherentX-rayScience:Coherence,Imaging&MoleculesPlanofpresentationDevelopaviewofcoherentdiffractiveimagingincludingpartialcoherence.DescribeCDIandidentifythreel

2、imitswithintheframeworkofpartialcoherenceCoherentPartiallycoherentilluminationTimevaryingobjectDescribethemethodEssentialdevelopmentsApplicationsinbiologyApplicationsinmaterialssciencePartialcoherenceinCDIHowimportantisit?HowcancoherencebemeasuredBuildingpartialcohe

3、renceintothereconstructionTimevaryingobjectsaspartiallycoherentdiffractionSomethoughts…FormalismforCDIInfar-field:Thefar-fieldintensityisthereforeThreelimits1.CDIwithcoherentlight&staticobject:Harmonicallyvarying(ie.coherent)incidentfield;staticobject2.CDIwithpartia

4、lly-coherentlight&staticobject:Randomvariationinincidentfield;staticobject3.CDIwithcoherentlight&dynamicobject:Coherentincidentfield;variationinobjectMoleculardynamicsPlanofpresentationDevelopaviewofcoherentdiffractiveimagingincludingpartialcoherence.DescribeCDIandi

5、dentifythreelimitswithintheframeworkofpartialcoherenceCoherentPartiallycoherentilluminationTimevaryingobjectDescribethemethodEssentialdevelopmentsApplicationsinbiologyApplicationsinmaterialssciencePartialcoherenceinCDIHowimportantisit?HowcancoherencebemeasuredBuildi

6、ngpartialcoherenceintothereconstructionTimevaryingobjectsaspartiallycoherentdiffractionSomethoughts…“Conventional”coherentdiffractiveimaging1.CDIwithcoherentlight&staticobject:Harmonicallyvarying(ie.coherent)incidentfield;staticobjectCoherentimagingmethodsarebeingde

7、veloped.zCoherentFieldImposeMeasuredIntensity,KeepPhaseImpose“support”GuessPhaseFirstDemonstrationAssumescompletecoherenceObjectmustbefiniteinextentTheShrinkwrapAlgorithmSphericalwaveFresneldiffractionimagingBiologicalApplicationsMaterialsApplicationsPlanofpresentat

8、ionDevelopaviewofcoherentdiffractiveimagingincludingpartialcoherence.DescribeCDIandidentifythreelimitswithintheframeworkofpartialcoherence