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LIGO News
Quantum sensor sets new limits
BATON ROUGE, La. – Researchers at Louisiana State University (LSU) are taking advantage of the quantum properties of light to design the world’s most sensitive optical interferometer. Optical interferometers are used in a vast range of applications, including metrology, surface profiling, microfluidics, mechanical stress/strain measurement and velocimetry. These instruments operate by combining two or more light sources (typically laser light) so that interference fringe patterns are produced. Inform...
Light's Might Harnessed
PASADENA, Calif., June 5, 2009 – A nanoscale device created at the California Institute of Technology exploits the mechanical properties of light to create an optomechanical cavity in which interactions between light and motion are greatly strengthened and enhanced. It harnesses...
'Squeezed Light' Record Set
HANOVER, Germany, Jan. 29, 2008 -- An extremely high-quality green laser beam has allowed a record number of photons to be placed in a specific order for use in gravitational wave detectors. Ordering the photons reduced fluctuations in the intensity of the light by 90 percent. This...
'Large' Object Laser-Cooled Near Absolute Zero
CAMBRIDGE, Mass., April 6, 2007 -- A coin-sized object has been cooled to within one degree of absolute zero through a laser-cooling technique that could one day allow scientists to observe quantum behavior in "large" objects. The study marks the coldest temperature ever reached...
Thousands Join Search for Waves
Mar 15, 2005 — COLLEGE PARK, Md., March 15 -- A new grassroots computing project dubbed Einstein@Home, which will let anyone with a personal computer contribute to cutting-edge astrophysics research, is one of the fastest growing distributed computing projects in...
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