Catching the wave

Details Catching the wave Catching the wave

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sciam.266...90r&link_type=abstract

Scientific American (ISSN 0036-8733), vol. 266, March 1992, p. 90-99.

Astronomy and Astrophysics

Astrophysics

1

Aerospace Sciences, Astronomical Spectroscopy, Astrophysics, Black Holes (Astronomy), Gravitational Waves, Einstein Equations, Electromagnetic Radiation, Laser Interferometry, Nuclear Astrophysics

Scientific paper

The conceptual design and observational prospects for the proposed Laser Interferometer Gravitational-Wave Observatory (LIGO) are discussed with reference to theory. The detection of gravitational waves is illustrated in which a beam splitter, two Fabry-Perot cavities, and a recycling mirror prepare gravitational waves for a detector. The LIGO facility is delineated and includes a 4-sq-km vacuum system, lasers, a vibration-isolation stack, and the optical components. The potential for measuring the waves is examined in the light of previous data and existing theory, and the importance of noise control is discussed. The LIGO facility is expected to provide data on the speed of gravitational waves and the properties of the waves relative to electromagnetic radiation.

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