Transmission electron microscopy A scanning electron microscope (SEM) is a type of electron microscope that images a sample by scanning it with a high-energy beam of electrons in a raster scan...
The microscopes one would think of in a college or high school biology lab are optical microscopes (ie: compound and stereo microscopes) and use light and glass optics in the eyepieces and objective...
Transmission electron microscopeMagnification: A series of electrostatic and electromagnetic lenses act on an electron beam to produce up to 50 million times magnificationDepth of field: Very...