Novel Noise Contributions in Crystalline Mirror Coatings

authored by: J. Yu, T. Legero, F. Riehle, C. Y. Ma, S. Herbers, D. Nicolodi, D. Kedar, E. Oelker, J. Ye, U. Sterr
Abstract: We discovered and characterized a novel birefringent noise in Al0.92Ga0.08As/GaAs crystalline mirror coatings at cryogenic temperature. We also determined the upper limit of coating Brownian noise in a reliable way. Our results indicate that excess noise related to semiconductor could be an obstacle to reaching the low Brownian thermal noise floor of these coatings. Our investigations on crystalline mirror coatings provide important design considerations for precision interferometry at cryogenic temperature.
External Organisation(s): National Metrology Institute of Germany (PTB)
Type: Conference contribution
Publication date: 2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials, Control and Optimization, Signal Processing, Instrumentation, Computer Networks and Communications
Electronic version(s): https://doi.org/10.1109/eftf/ifcs54560.2022.9850553 (Access: Closed)

BibTeX

@inproceedings{b144e401732f4ba883986ab113e62849,
title = "Novel Noise Contributions in Crystalline Mirror Coatings",
abstract = "We discovered and characterized a novel birefringent noise in Al0.92Ga0.08As/GaAs crystalline mirror coatings at cryogenic temperature. We also determined the upper limit of coating Brownian noise in a reliable way. Our results indicate that excess noise related to semiconductor could be an obstacle to reaching the low Brownian thermal noise floor of these coatings. Our investigations on crystalline mirror coatings provide important design considerations for precision interferometry at cryogenic temperature.",
keywords = "crystalline mirror coating, cryogenic, Gallium Arsenide, interferometry, birefringent noise, thermal noise",
author = "J. Yu and T. Legero and F. Riehle and Ma, {C. Y.} and S. Herbers and D. Nicolodi and D. Kedar and E. Oelker and J. Ye and U. Sterr",
note = "Funding information: ACKNOWLEDGMENTS We acknowledge support by the Project 20FUN08 NEXTLASERS, which has received funding from the EMPIR programmecofinancedbytheParticipatingStatesandfromthe European Union{\textquoteright}s Horizon 2020 Research and Innovation Programme, and by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany{\textquoteright}s Excellence Strategy–EXC-2123 QuantumFrontiers, Project-ID 390837967; SFB 1227 DQ-mat, Project-ID 274200144. This work was partially supported by the Max Planck-RIKEN-PTB CenterforTime,ConstantsandFundamentalSymmetries. JILA further acknowledges support by NIST, DARPA and the Air ForceOfficeofScientificResearch.",
year = "2022",
doi = "10.1109/eftf/ifcs54560.2022.9850553",
language = "English",
booktitle = "2022 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS)",
}