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Sapphire Could Become Interferometry's Crowning Jewel

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Kathleen G. Tatterson

NEDLANDS, Australia -- The gemology community considers sapphire to be one of the most precious stones on Earth, and researchers believe that the blue crystals' use as beamsplitters in laser interferometer gravitational wave detectors could be just as valuable.Current gravitational wave detectors use fused silica beamsplitters in their Fabry-Perot-Michelson interferometers. Scientists at the University of Western Australia and the University of Paris South are investigating using large, high-quality sapphire crystals in gravitational wave projects.The research team chose to work with a...Read full article

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