White light interferometry (WLI) is a contact-free optical method for measuring surface height. It uses the phase difference between the light reflected off a reference mirror and the target sample to ...
Interferometers use the interfere between waves, such as light, radio or sound, to make a measurement. (Image courtesy of Renishaw.) In its broadest sense, an interferometer is any instrument that ...
[jrcgarry] hacked together this awesome interferometer which is able to measure displacements in the nanometer range. Commercial interferometers are used in research labs to measure tiny displacements ...
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