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Infrared Interferometry

Photonics Showcase
Jan 2011
Metrology ConceptsRequest Info
 
The INTERFIRE II product line of IR interferometers spans NIR, SWIR, MWIR and LWIR wavelengths. These compact phase-shifting interferometers offer single- or dual-wavelength operation and are supported with a wide range of optical accessories for testing infrared material and optical systems.


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GLOSSARY
interferometer
An instrument that employs the interference of lightwaves to measure the accuracy of optical surfaces; it can measure a length in terms of the length of a wave of light by using interference phenomena based on the wave characteristics of light. Interferometers are used extensively for testing optical elements during manufacture. Typical designs include the Michelson, Twyman-Green and Fizeau interferometers. The basic interferometer components are a light source, a beamsplitter, a reference...
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