Wyant, James C. College of Optical Sciences, The University of Arizona, Tucson, Arizona.
- Basic classes of interferometers
- Michelson interferometer
- Twyman-Green interferometer
- Fizeau interferometer
- Mach-Zehnder interferometer
- Shearing interferometers
- Michelson stellar interferometer
- Fabry-Perot interferometer
- Holographic interferometry
- Speckle interferometry
- Phase-shifting interferometry
- Links to Primary Literature
- Additional Readings
The design and use of optical interferometers. Optical interferometers based on both two-beam interference and multiple-beam interference of light are extremely powerful tools for metrology and spectroscopy. A wide variety of measurements can be performed, ranging from determining the shape of a surface to an accuracy of less than a millionth of an inch (25 nanometers) to determining the separation, by millions of miles, of binary stars. In spectroscopy, interferometry can be used to determine the hyperfine structure of spectrum lines. By using lasers in classical interferometers as well as holographic interferometers and speckle interferometers, it is possible to perform deformation, vibration, and contour measurements of diffuse objects that could not previously be performed.
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