5 papers
Cryogenic Mechanical Loss of GaAs/AlGaAs Crystalline Coatings
Nicholas A. Didio, Steven D. Penn, Satoshi Tanioka +3
Optical coatings with minimal thermal noise are essential for high-precision, laser-based metrology experiments. Substrate-transferred crystalline GaAs/AlGaAs coa…
In situ substrate birefringence characterization in gravitational wave detectors using a heterodyne polarimetry method
Satoshi Tanioka, Terri Pearce, Yuta Michimura +6
High-quality test mass substrates play essential roles in laser interferometric gravitational wave detectors. Inhomogeneous birefringence distribution in test mass substrates, howe…
Birefringence of AlGaAs/GaAs Coatings under Above-Band-Gap Illumination, GR Noise and Photo-Optic Transfer Function
Bin Wu, Shreyan Goswami, Satoshi Tanioka +1
AlGaAs/GaAs coatings are being considered as coating candidates for gravitational-wave detectors. In this paper we investigate the birefringence properties of this crystalline semi…
Development of a polarimetry method toward in-situ substrate birefringence characterization of ground-based gravitational wave detectors
Satoshi Tanioka, Terri Pearce, Keiko Kokeyama
Improving the sensitivity of gravitational wave detectors is necessary to enrich scientific outcome of gravitational wave astronomy. Birefringence in test mass mirrors of gravitati…
Experimental demonstration of frequency downconverted arm length stabilization for a future upgraded gravitational wave detector
Satoshi Tanioka, Bin Wu, Stefan W. Ballmer
Ground-based laser interferometric gravitational wave detectors consist of complex multiple optical cavity systems. An arm-length stabilization (ALS) system has played an important…