GDR Ondes Gravitationnelles: workshop "développement des détecteurs"

Liste des Contributions

7. Visite LMA

Jerome DEGALLAIX (LMA - IP2I)

07/10/2026 09:00

1. Noise hunting in Virgo

Michal Was (LAPP)

07/10/2026 09:50

Noise hunting in GW detectors

2. Noise hunting in LISA

joseph Martino (APC)

07/10/2026 11:00

Noise hunting in GW detectors

3. Noise hunting in MIGA

Benjamin Canuel (LP2N CNRS/IOGS/Université de Bordeaux)

07/10/2026 11:45

Noise hunting in GW detectors

4. LISA End-To-End Test performances

Christelle Buy (L2I Toulouse, CNRS/IN2P3, Université de Toulouse)

07/10/2026 14:00

Contributed talks

Le futur détecteur d’ondes gravitationnelles, LISA (Laser Interferometer Space Antenna), est une constellation de trois satellites distants de 2.5 Mkm. Il sera le premier observatoire spatial permettant la détection d’ondes gravitationnelles de basse fréquence, dans la bande du millihertz (0.1 mHz - 1 Hz).
Dans ce contexte, il est indispensable de mener des campagnes de validation au sol à...

8. Cryogenic loss angle of ion-beam sputtered, non-stoichiometric silicon nitride thin films

Dr M. GRANATA (CNRS)

07/10/2026 14:20

Contributed talks

Silicon nitride (SiNx) is a highly versatile coating material. In high-reflection Bragg mirrors, it could be paired either with silica as high-index layer, for operation at any wavelength in the near infrared [1], or with amorphous silicon as low-index layer, for operation at a wavelength of 1550 nm or larger [2]; it could be used at ambient temperature as well as at cryogenic temperatures...

5. Laser power stabilization and bright squeezing generation via radiation pressure

Victor Munoz (Artemis - OCA, CNRS)

07/10/2026 14:40

Contributed talks

We will present a comparison between different schemes on bright squeezing generation. The schemes are based on the sensing of the quantum power fluctuations via the radiation-pressure motion induced on a suspended mirror by the power fluctuations and actively correcting them. We will show the fundamental limitations of these schemes, along with their capability to achieve ultra low power...

9. Characterization of Scattering Losses in the spare Output Mode Cleaner at LAPP

Ward AMAR

07/10/2026 15:00

Contributed talks

In this talk, we present the loss characterization of the spare OMC at LAPP. We measured the OMC's internal losses and found them to be approximately 3.4% ± 0.1%, significantly higher than the expected value of around 1.4% ± 0.4%.

To investigate the origin of these excess losses, we examined two possible scattering-related contributions. The first is surface scattering, which generates a...