Scanning Transmission and Scanning Electron Microscopy
The electron microscope is a microscope that can magnify very small details with high resolving power due to the use of electrons rather than light to scatter off material, magnifying at levels up to 500,000 times.
The Transmission Electron Microscope (TEM) produces images by detecting electrons that are transmitted through the sample, while the Scanning Electron Microscope (SEM) produces images by detecting secondary electrons which are emitted from the surface due to excitation by the primary electron beam.