Type of microscope with electrons as a source of illumination
Not to be confused with Scanning tunneling microscope.
A transmission electron microscope from 2002An image of an ant in a scanning electron microscope
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An electron microscope is a microscope that uses a beam of electrons as a source of illumination. They use electron optics that are analogous to the glass lenses of an optical light microscope to control the electron beam, for instance focusing them to produce magnified images or electron diffraction patterns. As the wavelength of an electron can be up to 100,000 times smaller than that of visible light, electron microscopes have a much higher resolution of about 0.1 nm, which compares to about 200 nm for light microscopes. Electron microscope may refer to:
Transmission electron microscopy (TEM) where swift electrons go through a thin sample
Scanning transmission electron microscopy (STEM) which is similar to TEM with a scanned electron probe
Scanning electron microscope (SEM) which is similar to STEM, but with thick samples
Electron microprobe similar to a SEM, but more for chemical analysis
Ultrafast scanning electron microscopy, version of a SEM that can operate very fast
Low-energy electron microscopy (LEEM), used to image surfaces
Photoemission electron microscopy (PEEM) which is similar to LEEM using electrons emitted from surfaces by photons
Additional details can be found in the above links. This article contains some general information mainly about transmission electron microscopes.
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A scanning transmission electronmicroscope (STEM) is a type of transmission electronmicroscope (TEM). Pronunciation is [stɛm] or [ɛsti:i:ɛm]. As with...
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environmental scanning electronmicroscope (ESEM) is a scanning electronmicroscope (SEM) that allows for the option of collecting electron micrographs of specimens...
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Prize in Physics in 1986 for his work in electron optics, including the design of the first electronmicroscope. Ernst Ruska was born in Heidelberg, Germany...
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