Seminari INFN

A novel interferometrically read out inertial sensor for future gravitational wave detectors

by Joris V. van Heijningen (Nikhef, Amsterdam)

Europe/Rome
Aula Conversi (Dipartimento di Fisica - Ed. G.Marconi)

Aula Conversi

Dipartimento di Fisica - Ed. G.Marconi

Description
We present a novel inertial sensor designed and developed at Nikhef that features an interferometric readout for a horizontal monolithic accelerometer. It will be able to measure 3 e-15 m/sqrt(Hz) displacement levels from 20 Hz onwards. Current results show (self) noise levels of 8 e-15m/sqrt(Hz) from 30 Hz onwards. Despite these unprecedented results, the result is worse than the sum of modeled noise contributions. Several possible unmodeled noise sources and possible solutions have been identified.
Slides