Results 261 to 270 of about 51,725 (294)
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The Virgo Gravitational Wave Detector
Frontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest, 2009The interferometer spectral-density of resolution is 6 x 10-231/ √HZ at 250 Hz.. We show the performances of mirror surfaces and coatings, laser frequency and amplitude stabilizations, interferometer control. We discuss advanced Virgo optical-technologies.
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Interferometric gravitational wave detectors
International Journal of Modern Physics D, 2018Gravitational wave detection has now entered the era in which signals are being found. It is timely, therefore, to review the current detectors and how they work. This review focuses on the dramatic arc that links the earliest clear understanding of gravitational wave detection with the current generation of detectors.
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Cryogenic gravitational wave detectors
Physica B: Condensed Matter, 2000Abstract Direct detection of gravitational waves is one of the great challenges of contemporary experimental physics. Gravitational waves provide unique information about the coherent bulk motion of the matter in the Universe and constitute a powerful testing ground for theories of gravity. After 40 years from the beginning of the experimental search
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New Class of Gravitational Wave Detectors
Nature, 1971IN a series of classic articles, Weber1–3 derived the equations of motion and the response of mass quadrupole detectors to tensor gravitational waves. He has also constructed a detector which is a cylindrical rod tuned to its fundamental longitudinal acoustic resonance. These devices (class 1 detectors) have a definite relationship between the resonant
D H, Douglass, J A, Tyson
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Spherical resonant-mass gravitational wave detectors
Physical Review D, 1995A spherical gravitational wave antenna is a very promising detector for gravitational wave astronomy because it has a large cross section, isotropic sky coverage, and can provide the capability of determining the wave direction. In this paper we discuss several aspects of spherical detectors, including the eigenfunctions and eigenfrequencies of the ...
, Zhou, , Michelson
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Interferometric gravitational wave detectors
Nuclear Physics B - Proceedings Supplements, 2005The status, progress and plans for the interferometer gravitational wave detectors are presented. Interferometric gravitational wave detectors are complementary to the resonant detectors. Interferometers are broadband detectors covering a frequencies range of about 10 to 10 4 Hz and are generally sensitive to lower frequency sources or different ...
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Gravitational-Wave-Detector Events
Physical Review Letters, 1968A new series of experiments is described, involving two gravitational wave detectors spaced about 2 km. A number of coincident events have been observed, with extremely small probability that they are statistical. It is clear that on rare occasions these instruments respond to a common external excitation which may be gravitational radiation.
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The ultracryogenic gravitational-wave detector AURIGA
Classical and Quantum Gravity, 1997The first run of the ultracryogenic resonant bar detector AURIGA is in progress. Diagnostics on the cryogenics, the data acquisition system and on the noise characteristics have been performed, with results in accord with the design. The bar reached 140 mK. In tests down to 2 K the detector noise was very close to `Brownian'.
M. Cerdonio +15 more
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Quantum Measurement in Gravitational-Wave Detectors
Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2006Laser interferometric gravitational-wave detectors measure tiny motions of macroscopic mirrors. Complex interferometer configurations and quantum optical techniques will be used to enhance sensitivity in future interferometers, which will reach and surpass the Standard Quantum Limit.
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Advanced Gravitational Wave Detectors
2012After decades of research, physicists now know how to detect Einstein's gravitational waves. Advanced gravitational wave detectors, the most sensitive instruments ever created, will be almost certain of detecting the births of black holes throughout the Universe. This book describes the physics of gravitational waves and their detectors.
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