Search for tag: "background signal"

Valence EELS, High Energy Resolution

2017 PARADIM SUMMER SCHOOL Low loss EELS David Muller

optical spectroscopyformal sciencesconcepts in physicssilicon richsilicon dioxidechemical elementsband gapscatteringelectron densitylowest energy featurereducing agentsvalence electronsquick rulepyrotechnic fuelselectron microscopewaveguide modenuclear physicspercent radiuselectronreal troubledielectric boundary conditionsnice bigfactorial and binomial topicstightly boundelectric fieldspatial resolutionsingle scatteringopticssample thicknessinterface plasmanano particlesoptical gapdirect bandgapphosphatesparticle physicsfluid dynamicshigh energy electronatomic physicsdielectric responsesbiology and pharmacology of chemical elementsliquid cellmultiple scatteringelectron beamenergy resolutiontiny signalsingle particle transitioncherenkov radiationelectron gasfree electron gasoptical transitionenergy lossenergy lostcharacteristic anglefree electronicenergy filterlow energycharge oscillationsvalence regionsurface plasmatoxicologyfree pathsilicon oxideoptical spectrabulk materialexit haitiancall auspexfourier analysisquantum mechanicsbig backgroundimage chargeelectrostaticslastic scatteringnice thinginteresting standing wavebessel functionboundary conditionsion imagesingle particlestanding wave modesfunny featureelectron statesscattering eventdirect gapgood free electronphysical quantitiesenergy loss functionvector calculusdietary mineralsabsorption and radiative transfer (optics)electrical engineeringthick samplefield lineslength scaleelectronics terminologyelectrodynamicsphoria transformradiation sensitivecaption completehofplasma frequencylog scaleexperimental particle physicshof epsilonsemiconductor materialshigher energyhigh frequencyatomic resolutioninterface modegood newsharmonic oscillatorspecial relativitydielectric functiondiverges logarithmicallyshine lightcouple 100 voltt.m.incredibly complicatedbad newselectromagnetismenergy rangecherenkov modes100 voltspherical modeslinear operators in calculuschemistrybulk plasma
From  James Overhiser on February 15th, 2019 14 plays

Linear Imaging Theory

2017 PARADIM Linear Imaging Theory Robert Hovden

d.n.a.dark fieldaperture sizeobject functiontotal intensitycollaboration increasesconcepts in physicsconvergence angleareaspherical aberrationwide rangecovering todaygeometric shapesd.n.a. structurecentral minimumelectron microscopyfocal pointintensity increaseslinear imaging modelwave vectorscontrol theoryoptical devicescollection anglelarger apertureelectron microscopehigh anglearchitectural elementssignal processingphotographyhigh pass filtertransfer functionuncorrected systemphase shiftdarkfield regimefunctional formscattered electronshigher frequencybright field stemegyptian artefact typesdiffraction patternscience of photographypoint spread functionhigh intensity probeelementary geometryintegralsspatial frequencyopticsobjective lensbright field regimebright spotsreal spacelow frequencyreciprocal spaceblurring contributionsphere collaborationuncorrected instrumentcharacteristic dimensionincoherent imaging conditionsurfacesaperture functionwave frontatomic physicsimaging modecontract transfer functionwhite noisescanning transmission electroncohere imagingprevious lecturedistant planeelementary shapesstemhigher angleshigh resolutionincoherent linear imagemil ratingdetector geometriesfield conegeometrytypes of functionsaberration correctedconstant phaselengthlower frequencieschromatic aberrationconic sectionsamplitude squaredaberration freescientific techniquesmicroscopesmeasuring instrumentsintensity squaredoptic axisintensity decreasescontrast transferdiffraction limitstem imageindividual atomradio spectrumincoherent imagingquantum mechanicsaberration free probemultivariable calculuspeople metersfocal planebright fieldlow angleamateur radiosystems theoryimage planecoherent imaging conditioncollecting electronsblurring functiontransmission electron microscopyphysical quantitiesdigital photographyangular spreaddouble integralcoherent imaginglargest rangeface shifthigher order aberrationsraleigh criterionpiofairly interpretabletransmission electron microscopesquare pulsegeometrical opticsdigital signal processing1st ordercaption completeprobe tailsnyquist limitblue curvesubroutinesbroadcastingfilter frequency responsemaximum frequencyhigh frequencycaustic curvehand sidelow pass filterspatial coordinatesatoms closercoherent imagesparrow criterionstructural systempico meterdark backgroundfrequency spaceoptimal aperturet.m.complex conjugatecontrast transfer functionwave functionmeasure ultimatelyimaging conditionannular darkfieldincoherent imaging modeatomic numberfield stematomic columninelastic interactionsnobel prizeangle mediumchemistryfocal imagingprobe size
From  James Overhiser on February 15th, 2019 17 plays