Acumen
发表于 2025-3-23 10:07:56
Electron Holography of Electromagnetic Fields,ctron microscopes (TEMs). Within the last decade dramatic improvements in coherent field-emission electron sources,. and in TEM instrumentation, have allowed the promise of holography to come to fruition.. Improvements in TEMs notwithstanding, it has been the application of holographic techniques an
Commemorate
发表于 2025-3-23 14:07:53
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为宠爱
发表于 2025-3-23 18:27:52
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蘑菇
发表于 2025-3-23 22:57:59
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破布
发表于 2025-3-24 04:55:11
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ARBOR
发表于 2025-3-24 10:33:56
Applications of Electron Holography,rticularly true for electron holography at moderate resolutions, where the phase image gives information about electrostatic and magnetic fields in the sample and in the space around the sample. Such information is not normally available from the intensity images obtained by non-holographic microsco
太空
发表于 2025-3-24 12:24:11
Electron Holography Using Diffracted Electron Beams (DBH),t has been proposed to use single crystal films as amplitude beam splitting devices, either alone. or in combination with an electron biprism.. In particular, it has been conceived to insert the biprism between convergent electron diffracted beams.. This method of beam interference was demonstrated
sleep-spindles
发表于 2025-3-24 15:15:02
Electron Holography at Low Energy,e year (1939) pointprojection shadow images of carbon grids were also reported at a few hundred volts using a field-emission electron tip.. The authors comment on the absence of aberrations in their lensless system, the removal of which has proved a major obstacle for conventional electron holograph
同音
发表于 2025-3-24 22:10:41
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Apoptosis
发表于 2025-3-25 01:13:01
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