Since 2020, the Virgo interferometer has entered the phase 1 of the Advanced Virgo + project, which consists in a series of detector upgrades aiming at improving the Virgo sensitivity by up to a factor 2 for the next data taking run foreseen to start in fall 2022. Following the installation works that took part mostly in 2020, the commissioning phase started in January 2021, with multiple...
Reducing thermal noise in mirror's coating is one of the main challenge in the noise hunting field whithin gravitational waves detectors.
Focus has been made on new materials that have better mechanical properties and thus lower thermal noises. I have worked in my PhD thesis work on the development of a Bragg mirror by transferring a AlGaAs/GaAs crystalline coating from a GaAs substrate to a...
LISA detection principle and sensitivity relies strongly on successful suppression of spacecraft dynamical jitter noise trough post-processing data combination (TDI, INREP). However residuals due to cross-couplings are expected to be important entries to the current noise budget, and in general, post-processing suppression of spacecraft stray motions have not yet been subject to numerous...