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A gravity laser, also sometimes referred to as a Gaser, Graser, or Glaser, is a hypothetical device for stimulated emission of coherent gravitational radiation or gravitons, much in the same way that a standard laser produces coherent electromagnetic radiation.
Supernova explosions—the gravitational collapse of massive stars at the end of their lives—emit gravitational radiation that may be seen by current interferometers. [23] A multi-messenger detection (electromagnetic and gravitational radiation, and neutrinos ) would help to better understand the supernova process and the formation of black ...
The Kamioka Gravitational Wave Detector (KAGRA) is a large interferometer designed to detect gravitational waves predicted by the general theory of relativity. KAGRA is a Michelson interferometer that is isolated from external disturbances: its mirrors and instrumentation are suspended and its laser beam operates in a vacuum .
A passing gravitational wave will slightly stretch one arm as it shortens the other. This is precisely the motion to which a Michelson interferometer is most sensitive. [citation needed] Even with such long arms, the strongest gravitational waves will only change the distance between the ends of the arms by at most roughly 10 −18 meters.
Gravitational waves transport energy as gravitational radiation, a form of radiant energy similar to electromagnetic radiation. [7] Newton's law of universal gravitation , part of classical mechanics , does not provide for their existence, instead asserting that gravity has instantaneous effect everywhere.
Gaser, Gamma Amplification by Stimulated Emission of Radiation; Gaussian beam; Geoscience Laser Altimeter System; Glan–laser prism; Goniometer; Grating-eliminated no-nonsense observation of ultrafast incident laser light e-fields, GRENOUILLE; Grating light valve; Gravitational wave; Gravitational wave detector; Gravity laser; Guidance system
As such, they are galactic-sized detectors. Although there are many applications for pulsar timing arrays, the best known is the use of an array of millisecond pulsars to detect and analyse long-wavelength (i.e., low-frequency) gravitational wave background.
Gravitational lenses act equally on all kinds of electromagnetic radiation, not just visible light, and also in non-electromagnetic radiation, like gravitational waves. Weak lensing effects are being studied for the cosmic microwave background as well as galaxy surveys .