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  2. Ground-based interferometric gravitational-wave search

    en.wikipedia.org/wiki/Ground-based_interfero...

    A laser is divided into two beams by a beam splitter tilted by 45 degrees. The two beams propagate in the two perpendicular arms of the interferometer, are reflected by mirrors located at the end of the arms, and recombine on the beam splitter, generating interferences which are detected by a photodiode. An incoming gravitational wave changes ...

  3. LIGO - Wikipedia

    en.wikipedia.org/wiki/LIGO

    The Laser Interferometer Gravitational-Wave Observatory (LIGO) is a large-scale physics experiment and observatory designed to detect cosmic gravitational waves and to develop gravitational-wave observations as an astronomical tool. [1]

  4. Self-mixing interferometry - Wikipedia

    en.wikipedia.org/wiki/Self-mixing_interferometry

    Set-up of a self-mixing interferometer with laser diode and monitor photodiode. Self-mixing or back-injection laser interferometry is an interferometric technique in which a part of the light reflected by a vibrating target is reflected into the laser cavity, causing a modulation both in amplitude and in frequency of the emitted optical beam.

  5. GEO600 - Wikipedia

    en.wikipedia.org/wiki/GEO600

    GEO600 is a gravitational wave detector located near Sarstedt, a town 20 kilometres (12 mi) to the south of Hanover, Germany.It is designed and operated by scientists from the Max Planck Institute for Gravitational Physics, Max Planck Institute of Quantum Optics and the Leibniz Universität Hannover, along with University of Glasgow, University of Birmingham and Cardiff University in the ...

  6. List of types of interferometers - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of...

    Linnik interferometer (microscopy) LUPI variant of Michelson; Lummer–Gehrcke interferometer; Mach–Zehnder interferometer; Martin–Puplett interferometer; Michelson interferometer; Mirau interferometer (also known as a Mirau objective) (microscopy) Moiré interferometer (see moiré pattern) Multi-beam interferometer ; Near-field interferometer

  7. LISA Pathfinder - Wikipedia

    en.wikipedia.org/wiki/LISA_Pathfinder

    The interferometer was a model of one arm of the final LISA interferometer, but reduced from millions of kilometers long to 40 cm. The reduction did not change the accuracy of the relative position measurement, nor did it affect the various technical disturbances produced by the spacecraft surrounding the experiment, whose measurement was the ...

  8. Hanbury Brown and Twiss effect - Wikipedia

    en.wikipedia.org/wiki/Hanbury_Brown_and_Twiss_effect

    An example of an intensity interferometer that would observe no correlation if the light source is a coherent laser beam, and positive correlation if the light source is a filtered one-mode thermal radiation.

  9. Optical autocorrelation - Wikipedia

    en.wikipedia.org/wiki/Optical_autocorrelation

    Classification of the different kinds of optical autocorrelation. In optics, various autocorrelation functions can be experimentally realized. The field autocorrelation may be used to calculate the spectrum of a source of light, while the intensity autocorrelation and the interferometric autocorrelation are commonly used to estimate the duration of ultrashort pulses produced by modelocked lasers.

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