2 papers
physics.optics2025
Non-uniform Birefringence in Highly-reflective Substrate-Transferred GaAs/AlGaAs Coatings at 1064 nm
Andri M. Gretarsson, Ambroise L. M. Juston, Benjamin Nicolai +8
Using a custom-built scanning system, we generated maps of birefringence on reflection at ~nm from single-crystal GaAs/AlGaAs Bragg reflectors (henceforth…
physics.optics2024
Characterisation of birefringence inhomogeneity of KAGRA sapphire mirrors from transmitted wavefront error measurements
Haoyu Wang, Yoichi Aso, Matteo Leonardi +7
Cooling down test masses to cryogenic temperatures is a way to reduce the thermal noise of gravitational wave detectors. Crystalline materials are considered the most promising mat…