Name: Materials for Advanced Detectors 2025
Start: 2025-10-06T09:00:00+02:00
End: 2025-10-07T22:00:00+02:00
Location: Leibniz-Insitut für Kristallzüchtung (IKZ)

Materials for Advanced Detectors 2025

from Monday 6 October 2025 (09:00) to Tuesday 7 October 2025 (22:00)

Monday 6 October 2025

10:00 Lab Tours of IKZ. !!!Please note, the Lab Tour starts at IKZ Lobby!!!
Lab Tours of IKZ. !!!Please note, the Lab Tour starts at IKZ Lobby!!!
10:00 - 12:00
Room: Lobby

12:00 Coffee Break
Coffee Break
12:00 - 12:30

12:30

12:30 - 12:45
12:45
12:45 - 13:45
Contributions

12:45 Introduction on Substrate Research - Jessica Steinlechner

13:00 Polishing and characterisation of sapphire substrates for third-generation gravitational wave detectors in Lyon. - Severin Nadji (Laboratoire des Matériaux Avancés (LMA))

13:15 Large diameter Float-Zone crystals for gravitational wave detectors - Sune Duun (Topsil GlobalWafers A/S)

13:30 Growth method dependent purity of silicon crystals for ET-mirrors - Frank Kiessling (Leibniz-Institut für Kristallzüchtung)
13:45 Lunch break and poster session
Lunch break and poster session
13:45 - 14:45
14:45
14:45 - 16:00
Contributions

14:45 Low oxygen, high purity, proven crystal growth method for 450mm + silicon optics - Nathan Stoddard (Lehigh University)

15:00 Towards high-purity, large-diameter silicon mirror substrates: A self-crucible growth concept - Robert Menzel

15:15 Composite silicon optics for next generation ground based GW detectors - Margot Hennig

15:30 Risks and Opportunities with Composite Substrates and Alternative optical modes - Aaron Goodwin-Jones (UCLouvain)

15:45 Surface absorption of crystalline silicon - Jessica Steinlechner Laura Silenzi
16:00 Coffee Break
Coffee Break
16:00 - 16:30

16:30 Discussion
Discussion
16:30 - 17:00

19:00 Social event
Social event
19:00 - 22:00
Tuesday 7 October 2025
09:00
09:00 - 10:15
Contributions

09:00 Introduction on Suspension Research

09:15 Float zone silicon fibers for suspension application in Einstein Telescope - Iryna Buchovska (Leibniz-Institut für Kristallzüchtung)

09:30 ET-FIBER: Monocrystalline Silicon Fibre Development for Cryogenic Test Mass Suspensions - Christophe Collette (University of Liege) Gilles Magain (University of Liege)

09:45 Cautions for a correct evaluation of breaking strength measurements - Flavio Travasso

10:00 Precision Mechanical Loss Measurement & Noise Characterisation: E-TEST Cryogenic Prototype - Hemendra Singh
10:15 Coffee Break
Coffee Break
10:15 - 10:45
10:45
10:45 - 11:30
Contributions

10:45 Mechanical Dissipation in Maraging Steel at Room Temperature and Very Low Frequency - Matteo Baratti (University of Pisa, INFN Pisa)

11:00 Sapphire-Based Suspension at ARC-ETCRYO Laboratory: Ongoing Test Campaigns - Emanuele Tofani (INFN Roma1-Università degli studi della Campania "Luigi Vanvitelli") Eugenio Benedetti (INFN Roma1) Van Long Hoang (INFN-Roma1)

11:15 Sapphire fibre suspensions for KAGRA and ET with low loss jointing techniques - Andrew Spencer
11:30 Discussion
Discussion
11:30 - 12:00

12:00 Lunch break and poster session
Lunch break and poster session
12:00 - 12:50
12:50
12:50 - 14:15
Contributions

12:50 Introduction on Coating Research - alex amato (Maastricht University - Nikhef)

13:00 Development of mixed oxide coatings for future detectors - Mariana Fazio

13:15 Evolution Optical Coating Thin Films Following Thermal Annealing: IR Spectroscopic Ellipsometry and Raman Investigation - Shima Samandari (OptMatLab, Dipartimento di Fisica, Università di Genova, Via Dodecaneso 33, 16146 Genova, Italy)

13:30 Development of Silicon Nitride by RF Magnetron Sputtering for GW Coatings - Simone Marchetti (University of Padova - Department of Physics and Astronomy, Istituto Nazionale di Fisica Nucleare - Sezione di Padova)

13:45 Advancing Gravitational-Wave Detection Through Ion Implantation for Low Thermal Noise Coatings - Luca Massaro

14:00 Optical Simulations of Ion Implanted Layers for Advanced Gravitational-Wave Detection - Ismail El Ouedghiri-Idrissi (Maastricht University)
14:15 Coffee Break
Coffee Break
14:15 - 14:45
14:45
14:45 - 15:15
Contributions

14:45 Measuring the mechanical and optical losses of coatings in cryogenic conditions using an optomechanical cavity - Nicole Busdon

15:00 Vacuum issues and possible mitigations in cryogenic gravitational wave detectors and cold mirrors test benches - Roberto Cimino
15:15 Discussion
Discussion
15:15 - 15:45

15:45

15:45 - 16:00

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