Search for tag: "phase shift"

47:29 Molecular Beam Epitaxy of High Mobility ZnO-based… Molecular Beam Epitaxy of High Mobility ZnO-based Heterostructures (Falson)	Molecular Beam Epitaxy of High Mobility ZnO-based Heterostructures (Falson) 2019 Cornell Summer School generally speaking growth parameters concepts in physics chemical elements magnesium zinc oxide percent magnesium geometric shapes heat transfer needle temperature coke side density inorganic compounds thermodynamics hall effect reducing agents scattering time pyrotechnic fuels materials science oxide substrate form defects magnetic field oxides polarization field max planck fairly high quantum transport pretty simple ball crystal rotated sample band gap ultraviolet radiation real space depletion region measurement electric and magnetic fields in matter beautiful big crystallography ray diffraction gallium arsenide micro meter extra wiggles shift gears chemical properties electric field spintronics nice flat environmental science doping magnesium electron gas high density magnesium content cool interaction problems whatsoever residual charge local tetrahedron fractional quantum phase transition nice linear light sources magnetism degrees celsius silicon oxide photo luminescence mineralogy semiconductors electron mobility charge density quantum mechanics silicon particles dimensional extra system temperature high mobility electrostatics antacids dimensional electron system effective mass superhard materials impurity content common oxide glass components refractory materials quantum phases physical quantities condensed matter physics header interface header structure dietary minerals cooking techniques substrate holder silicon carbide state functions crystal structure electronics terminology iii-v compounds metals large peak crystals mathematical terminology carbides caption complete single crystal plasma cell environmental chemistry semiconductor materials full range rock salt arsenides growth rate d.c.theatre photon energy single site roughly proportional flat surface moderate temperatures alkaline earth metals electromagnetism m.b.zinc oxide low temperature diffraction nitrides gallium nitride left hand side zinc oxide layer materials fairly simple From James Overhiser on August 7th, 2019 80 plays
01:16:04 Ronchigrams Ronchigrams	Ronchigrams 2017 PARADIM SUMMER SCHOOL Ronchigrams Peter Ercius aperture size dark field detector concepts in physics smaller probe spherical aberration largest probe graduate school guy named higher order strong magnetic long time electron microscopy order terms phase change zone axis pretty easy specimen optics optical devices 0.11 nanometers fraction pattern local magnification larger aperture electron microscope corrected scope aberration corrected microscope previous images photography magnetic field raunchy gram electron phase shift stem probe convergence angle electron diffraction pattern diffraction pattern science of photography diffraction space elementary geometry post specimen rate path small screen engstrom optics objective lens circles aberration shape microns left low frequency nice probe corrected stem small amount semi angle post specimen lenses infinite magnification focus series monolithic detector seabed pattern ranch graham flat region atomic physics aberration corrected scope electron lens pretty close a.t.f.focal series diffraction button aberration correct overlap region bright field detector largest aperture high resolution wine glass carbon k.v.lot simpler image correct aberration corrected length round lens 300 k.v.quote unquote large focus radio symmetry focused probe image processing bbc radio 4 programmes contrast transfer ecclesiastical titles centimetre–gram–second system of units f.b.i. tech physical optics image shift flat phase micron diameter aperture 200 k.b.geometrical optics amorphous material alpha angle aberration corrector c.s.aberration correction shadow image sphere collaboration physical chemistry digital photography higher order aberrations beam electron diffraction f.b.i.100 percent 2nd order csub caption complete star aberration crystallography angle high angles c.c.d.virtual detector optical axis automated alignment particle physics aberration function pixilated detector computer vision lens current atomic resolution central spike weird aberrations higher order terms perfect lens t.m.3rd order priest specimen lenses k.b.double overlap si derived units corrected microscope diffraction single position tiny bit order spherical chemistry convergent beam electron stem From James Overhiser on February 15th, 2019 30 plays
01:01:34 Linear Imaging Theory Linear Imaging Theory	Linear Imaging Theory 2017 PARADIM Linear Imaging Theory Robert Hovden d.n.a.dark field aperture size object function total intensity collaboration increases concepts in physics convergence angle area spherical aberration wide range covering today geometric shapes d.n.a. structure central minimum electron microscopy focal point intensity increases linear imaging model wave vectors control theory optical devices collection angle larger aperture electron microscope high angle architectural elements signal processing photography high pass filter transfer function uncorrected system phase shift darkfield regime functional form scattered electrons higher frequency bright field stem egyptian artefact types diffraction pattern science of photography point spread function high intensity probe elementary geometry integrals spatial frequency optics objective lens bright field regime bright spots real space low frequency reciprocal space blurring contribution sphere collaboration uncorrected instrument characteristic dimension incoherent imaging condition surfaces aperture function wave front atomic physics imaging mode contract transfer function white noise scanning transmission electron cohere imaging previous lecture distant plane elementary shapes stem higher angles high resolution incoherent linear image mil rating detector geometries field cone geometry types of functions aberration corrected constant phase length lower frequencies chromatic aberration conic sections amplitude squared aberration free scientific techniques microscopes measuring instruments intensity squared optic axis intensity decreases contrast transfer diffraction limit stem image individual atom radio spectrum incoherent imaging quantum mechanics aberration free probe multivariable calculus people meters focal plane bright field low angle amateur radio systems theory image plane coherent imaging condition collecting electrons blurring function transmission electron microscopy physical quantities digital photography angular spread double integral coherent imaging largest range face shift higher order aberrations raleigh criterion pio fairly interpretable transmission electron microscope square pulse geometrical optics digital signal processing 1st order caption complete probe tails nyquist limit blue curve subroutines broadcasting filter frequency response maximum frequency high frequency caustic curve hand side low pass filter spatial coordinates atoms closer coherent image sparrow criterion structural system pico meter dark background frequency space optimal aperture t.m.complex conjugate contrast transfer function wave function measure ultimately imaging condition annular darkfield incoherent imaging mode atomic number field stem atomic column inelastic interactions nobel prize angle medium chemistry focal imaging probe size From James Overhiser on February 15th, 2019 20 plays
$Thumbnail for entry Diffraction (Part 1)$ 01:18:03 Diffraction (Part 1) Diffraction (Part 1)	Diffraction (Part 1) 2017 PARADIM Diffraction part 1 David Muller d.n.a.solid pole concepts in physics outgoing spherical wave positive nuclei ray diffraction experiment atomic physics diffracted beam nicely lined higher order silicon atom electron microscopy focal point image intensity zone axis symmetry zone axes optical devices fia fraction pattern teaching shape factor electron microscope audio engineering high angle nuclear physics fit scattering beautiful thing good approximation thin sample imaging method chip chip chip reciprocal lattice phase shift elastic scattering digital audio english indie rock groups diffraction pattern diffraction space geometric optics chemical elements big angles spatial resolution small angle scattering elementary special functions badly tilted spatial frequency adam layer real space lattice spacing delta function small angle measurement crystallography particle physics musical quintets time frequencies quantum chemistry scattering happened 1st column scattering oral communication plane wave atom column biology and pharmacology of chemical elements titanium column multi slice transmission function electron beam finite object surface normal big spacing periodic crystal soft moon forward direction synchrotron-related techniques wave number constant phase infinite series change shape travel parallel infinitely large crystal scientific techniques main thing sol microscopes mathematical physics contrast imaging optic axis shape fact transition metals initial wave forward scattering stem image reciprocal space spherical wave electronics terminology quantum mechanics field image neighboring column 1st approximation reducing agents fourier analysis analytic geometry furcal wave focal plane time varying bright field angle scattering order spot multi slice simulation image plane didactics scattering event physical aperture diffraction spot momentum space physical quantities phoria transform times worse 2nd ring single atom objective aperture dietary minerals absorption and radiative transfer (optics)trigonometry strong phase approximation unit cell field imaging carbon nitrogen stem mode metals diffraction peak inverse angstroms english alternative rock groups dog field geometrical optics parallel beam 1st order momentum transfer atomic resolution image year transform crystallography definition periodic table fiber optic waveguide pyrotechnic fuels central spot semiconductor materials mathematical notation caption complete finite size lattice image d.c.large angle fall field sine wave fraction spot functional analysis random orientation t.m.bad news initial wave function educational psychology acoustics information theory diffraction atomic number long rod wave function From James Overhiser on February 15th, 2019 34 plays