11–12 oct. 2021
LAPP - Laboratoire d'Annecy de Physique des Particules
Fuseau horaire Europe/Paris

Development of a crystalline mirror by transfer of a AlGaAs/GaAs multilayer coating on a silica substrate

12 oct. 2021, 15:45
15m
LAPP - Laboratoire d'Annecy de Physique des Particules

LAPP - Laboratoire d'Annecy de Physique des Particules

9 Chemin de Bellevue, 74940 Annecy
DEVELOPPEMENT DES DETECTEURS Groupe de Travail: détecteurs

Orateur

Victor Hui (LAPP)

Description

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 SiO2 substrate. The experimental work has been conducted with CEA LETI at Grenoble. I will present the main technological issues that we encountered and the key results that we obtained.

Author

Victor Hui (LAPP)

Documents de présentation