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When used as a tunable narrow band filter, Michelson interferometers exhibit a number of advantages and disadvantages when compared with competing technologies such as Fabry–Pérot interferometers or Lyot filters. Michelson interferometers have the largest field of view for a specified wavelength, and are relatively simple in operation, since ...
Air-wedge shearing interferometer; Astronomical interferometer / Michelson stellar interferometer; Classical interference microscopy; Bath interferometer (common path) Cyclic interferometer
Fig. 7 illustrates use of a Michelson interferometer as a tunable narrow band filter to create dopplergrams of the Sun's surface. When used as a tunable narrow band filter, Michelson interferometers exhibit a number of advantages and disadvantages when compared with competing technologies such as Fabry–Pérot interferometers or Lyot filters ...
Mach–Zehnder interferometers are used in electro-optic modulators, electronic devices used in various fiber-optic communication applications. Mach–Zehnder modulators are incorporated in monolithic integrated circuits and offer well-behaved, high-bandwidth electro-optic amplitude and phase responses over a multiple-gigahertz frequency range.
Most interferometers use mirrors, curved lenses, and more to bend and recapture light waves, but some may be acoustic, using a crystal to resonate through a cloud of liquid or gas.
Atom interferometers measure the difference in phase between atomic matter waves along different paths. Matter waves are controlled and manipulated using systems of lasers. [ 1 ] : 420–1 Atom interferometers have been used in tests of fundamental physics, including measurements of the gravitational constant , the fine-structure constant , and ...
Double-path interferometers are highly sensitive to phase shifts or length changes between the reference and sample arms. Because of this, double-path interferometers have found wide use in science and industry for the measurement of small displacements, [2] refractive-index changes, [3] surface irregularities and the like. There are ...
Current projects will use interferometers to search for extrasolar planets, either by astrometric measurements of the reciprocal motion of the star (as used by the Palomar Testbed Interferometer and the VLTI), through the use of nulling (as will be used by the Keck Interferometer and Darwin) or through direct imaging (as proposed for Labeyrie's ...