electron holography


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electron holography

[i‚lek‚trän hō′läg·rə·fē]
(electronics)
An imaging technique using the wave nature of electrons and light, in which an interference pattern between an object wave and a reference wave is formed using a coherent field-emission electron beam from a sharp tungsten needle, and is recorded on film as a hologram, and the image of the original object is then reconstructed by iilluminating a light beam equivalent to the reference wave onto the hologram.
References in periodicals archive ?
Atomic resolution in lensless low-energy electron holography.
The 3-dimensional shape-determining techniques of electron holography and tomography are discussed before ending with a contribution on scanning electron microscopy (SEM) and its novel extension into helium ion microscopy.
These differential phase-contrast imaged fields can be compared to electron holography and combined with simultaneously acquired EDS and EELS signals.
The complex includes a high-resolution scanning transmission mode, a high-sensitivity energy dispersive X-ray spectrometer (EDX), a biprism for electron holography, and a digital camera.
Techniques such as electron holography, interferometry, scanning probe microscopy, and X-ray focusing are discussed here.
Electron Holography Reveals Potential for Ferroelectric Data Storage; Copper for Russian Tax Stamp Holograms; Editorial: Wither Display Holography?
In our days holography is used for data storage [12], as a holographic memory, protection of documents [13], as well as for art, holographic interferometry [14-18], interferometric microscopes [19], electron holography, acoustic holography, and etc.
Content covers "all aspects of holography and speckle," ASP said, including biomedical applications, optical memories, x-ray and electron holography, optical scanning, heat and mass transfer, refraction, astronomy and automatic analysis, among Others.
The key to the new diffraction method, which is a type of electron holography, is its so-called coherent electron source, notes Stephen J.
He has over 14 years of intensive research in the field and is the main editor of the standard reference book "Introduction to Electron Holography.
Among the topics are active dopant profiling in the TEM by off-axis electron holography, dark-field electron holography for strain mapping, magnetic mapping using electron holography, in situ characterization methods in TEM, and preparing specimens for semiconductor analysis.
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