Search for tag: "elementary number theory"

From Einstein's Photoelectric Effect to Band Mapping. (Shen)

2019 Summer School

optical spectroscopyenergy electronic structureconcepts in physicsfermi energykilo voltmodern physics classsimple systemtranslational symmetryelectrons insideelectronic structureangle result photocontinuum mechanicsmeasure thingsperpendicular componenthigh energym.b.e.high energy resolutionteachingphoto electronnuclear physicsgood sampleelectrons comingelectron comingmagnetic fieldphoto motionelectronphoto mission experimentradiobiologymain factorselectronics companies of the united kingdomcolor codedcharge carriersprobing depthelementary geometryphoto missionmaterial propertiesbinding energyresult photo missionenergy electronsenergysingle spectrummeasurementsurface sensitivecrystallographyray diffractionsocial sciencesfree carriersleadtennis ballhigh intensitybasically mapbasic principleplane wavethreshold energyreciprocal lotelectronicspretty popularenergy resolutionmaterial systemsmission experimentmomentum conservationfree electron gasanthropologyphysical propertiesmagnetismformally correctoptical transitionband structureplain wavedeep insidehuge numbercore levelsgeometryphoton energydefined energylow energychannel platekey thingtotal momentumconservation lawsquantum mechanicaldipole matrix elementuniversal curvesymmetrysimple relationshipstep modelpolar anglephoto currentmain thingdecision theoryenergy bandphoto mission processtransition matrix elementenergy conservationband massesfree electronlarge energyaccelerator physics100 electron voltspotential barriersudden approximationphoto mission measurementwork functionradiation shieldphoto electrons comingclassical mechanicsmomentum spacephysical quantitiesballscondensed matter physicsphoto machinedischarge lampsingle atomlow energy electroniccouple slidesvalence bandspectroscopyhigher harmonic generationplane momentumphoto lecturemechanicsactual processfamous yearnanometer probingmission processelectron voltsquantum mechanics classcaption completefree spacefeatureless backgroundsample manipulatorcrystal wrightfermi–dirac statisticsthermodynamicshigher energykinetic energyhighest energyvacuum chamberelectronic band structureselectron analyzerplay momentumvelocityquantum chemistrycorrect answerquantum materialselectron momentumelectromagnetismfermi levelurban studies and planningelectron leavingeducational psychologyenergy rangesi derived unitslow temperaturemassquantum mechanicsnobel prizematerial science
From  James Overhiser on August 7th, 2019 21 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

Diffraction (Part 1)

2017 PARADIM Diffraction part 1 David Muller

d.n.a.solid poleconcepts in physicsoutgoing spherical wavepositive nucleiray diffraction experimentatomic physicsdiffracted beamnicely linedhigher ordersilicon atomelectron microscopyfocal pointimage intensityzone axissymmetry zone axesoptical devicesfiafraction patternteachingshape factorelectron microscopeaudio engineeringhigh anglenuclear physicsfit scatteringbeautiful thinggood approximationthin sampleimaging methodchip chip chipreciprocal latticephase shiftelastic scatteringdigital audioenglish indie rock groupsdiffraction patterndiffraction spacegeometric opticschemical elementsbig anglesspatial resolutionsmall angle scatteringelementary special functionsbadly tiltedspatial frequencyadam layerreal spacelattice spacingdelta functionsmall anglemeasurementcrystallographyparticle physicsmusical quintetstime frequenciesquantum chemistryscattering happened1st columnscatteringoral communicationplane waveatom columnbiology and pharmacology of chemical elementstitanium columnmulti slicetransmission functionelectron beamfinite objectsurface normalbig spacingperiodic crystalsoft moonforward directionsynchrotron-related techniqueswave numberconstant phaseinfinite serieschange shapetravel parallelinfinitely large crystalscientific techniquesmain thingsolmicroscopesmathematical physicscontrast imagingoptic axisshape facttransition metalsinitial waveforward scatteringstem imagereciprocal spacespherical waveelectronics terminologyquantum mechanicsfield imageneighboring column1st approximationreducing agentsfourier analysisanalytic geometryfurcal wavefocal planetime varyingbright fieldangle scatteringorder spotmulti slice simulationimage planedidacticsscattering eventphysical aperturediffraction spotmomentum spacephysical quantitiesphoria transformtimes worse2nd ringsingle atomobjective aperturedietary mineralsabsorption and radiative transfer (optics)trigonometrystrong phase approximationunit cellfield imagingcarbon nitrogenstem modemetalsdiffraction peakinverse angstromsenglish alternative rock groupsdog fieldgeometrical opticsparallel beam1st ordermomentum transferatomic resolution imageyear transformcrystallography definitionperiodic tablefiber optic waveguidepyrotechnic fuelscentral spotsemiconductor materialsmathematical notationcaption completefinite sizelattice imaged.c.large anglefall fieldsine wavefraction spotfunctional analysisrandom orientationt.m.bad newsinitial wave functioneducational psychologyacousticsinformation theorydiffractionatomic numberlong rodwave function
From  James Overhiser on February 15th, 2019 26 plays