two-beam interferometer

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• Linnik interferometer — A Linnik interferometer is a two beam interferometer used in microscopy and surface contour measurements or topography. The basic configuration is the same as a Michelson interferometer. What distinguishes the Linnik configuration is the use of… …   Wikipedia

• interferometer — An instrument for measuring minute distances or movements through the interference of light waves thereby produced. [interfere + G. metron, measure] electron i. an i. that employs an electron beam in place of a light beam. * * *… …   Medical dictionary

• interferometer — interferometric /in teuhr fear euh me trik/, adj. interferometrically, adv. interferometry, n. /in teuhr feuh rom i teuhr/, n. 1. Optics. a device that separates a beam of light into two ray beams, usually by means of reflection, and that brings… …   Universalium

• Delay line interferometer — A delay line interferometer (DLI) can be a Mach Zehnder interferometer or Michelson interferometer based on two beam interference, in which one beam is time delayed to the other by a desired interval. Delay line interferometers are also known as… …   Wikipedia

• Fabry–Pérot interferometer — Étalon redirects here. For the commune in Somme, France, see Étalon, Somme. Interference fringes, showing fine structure, from a Fabry–Pérot etalon. The source is a cooled deuterium lamp. In optics, a Fabry–Pérot interferometer or etalon is typic …   Wikipedia

• Michelson interferometer — A Michelson interferometer for use on an optical table. The Michelson interferometer is the most common configuration for optical interferometry and was invented by Albert Abraham Michelson. An interference pattern is produced by splitting a beam …   Wikipedia

• Fabry-Pérot interferometer — In optics, a Fabry Pérot interferometer or etalon is typically made of a transparent plate with two reflecting surfaces, or two parallel highly reflecting mirrors. (Technically the former is an etalon and the latter is an interferometer, but the… …   Wikipedia

• Mach-Zehnder interferometer — The Mach Zehnder interferometer (named after physicists Ludwig Mach (son of Ernst Mach) and Ludwig Zehnder) is a device used to determine the phase shift caused by a small sample which is placed in the path of one of two collimated beams (thus… …   Wikipedia

• Mirau interferometer — The figure shows the optical path of a Mirau interferometer. Reference beam (5 4 6) and object beam (5 7 6) have identical optical path length and can thus cause white light interference. Parts of the Mirau interferometer: 1. Lens of the… …   Wikipedia

• optical interferometer — ▪ instrument       instrument for making precise measurements for beams of light of such factors as length, surface irregularities, and index of refraction. It divides a beam of light into a number of beams that travel unequal paths and whose… …   Universalium

• Shearing interferometer — The shearing interferometer is an extremely simple means to observe interference and to use this phenomenon to test the collimation of light beams, especially from laser sources which have a coherence length which is usually a lot longer than the …   Wikipedia