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Australian university coatings boost sensitivity for gravitational wave hunts

Quantum ZeitgeistOctober 1, 20263 min read

ANU engineered ultra-precise optical coatings for LIGO, aiding the global collaboration in detecting gravitational waves from events like black hole collisions.

ANU researchers have delivered ultra-precise optical coatings to the Laser Interferometer Gravitational-Wave Observatory (LIGO), enhancing its ability to detect ripples in spacetime. The team spent three years developing and applying these coatings to two specialized beamsplitters, pushing precision optics to levels of uniformity. “We’re coating this glass to within a nanometre or two across almost half a metre – a few…

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