Materials for Advanced Detectors 2025

Session

Poster Session

6 Oct 2025, 13:45

Leibniz-Insitut für Kristallzüchtung (IKZ)

34. Cooling away the absorption - Silicon mirror development for future gravitational wave detectors

Janis Woehler

06/10/2025, 13:45

Poster

Silicon is the substrate material chosen for future gravitational wave detectors such as ET mainly because of the low optical absorption together with a high mechanical quality factor. To optimize the coatings deposited on these silicon substrates, they have to be annealed to temperatures above 600◦C. At temperatures between 450◦C and 600◦C thermal donors start to form, increasing the optical...

45. Development of a Silicon Suspension System for the Einstein Telescope Pathfinder

Maike Kühler

06/10/2025, 13:55

Poster

The Einstein Telescope Pathfinder (ETPF) is a cryogenic test facility in Maastricht, aimed at developing core technologies for the Einstein Telescope, a future third-generation gravitational wave observatory. One key component under investigation is a low-noise suspension system designed for cryogenic operation. Due to its low mechanical quality factor and high thermal expansion at cryogenic...

49. Advancing electrochemical micromachining technology for new and difficult-to-cut materials

Dr Muhammad Hazak Arshad (KU Leuven)

06/10/2025, 14:05

Poster

Electrochemical micromachining (ECM) is a non-contact and athermal process that can machine electrically conductive materials through anodic dissolution in the presence of an electrolyte and applied voltage governed by Faraday's law of electrolysis. The absence of mechanical forces and thermal damage make ECM especially suitable for machining advanced materials, regardless of hardness, while...

65. Towards Reliable Bonding of Sapphire and Silicon II

Alexey Kuzmichev (Impex HighTech GmbH)

06/10/2025, 14:15

Poster

Towards Reliable Bonding of
Sapphire and Silicon II