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Title: Study on electro-optic noise in crystalline coatings toward future gravitational wave detectors
Thermal noise in high-reflectivity mirror coatings is a limiting factor in ground-based gravita-tional wave detectors. Reducing this coating thermal noise improves the sensitivity of detectorsand enriches the scientific outcome of observing runs. Crystalline gallium arsenide and aluminum-alloyed gallium arsenide (referred to as AlGaAs) coatings are promising coating candidates forfuture upgrades of gravitational wave detectors because of their low coating thermal noise. How-ever, AlGaAs-based crystalline coatings may be susceptible to an electro-optic noise induced byfluctuations in an electric field. We investigated the electro-optic effect in an AlGaAs coating byusing a Fabry-Perot cavity, and concluded that the noise level is well below the sensitivity of currentand planned gravitational-wave detectors.  more » « less
Award ID(s):
2207640 2011688 1707863 1912699
PAR ID:
10426410
Author(s) / Creator(s):
; ; ; ;
Publisher / Repository:
American Physical Society
Date Published:
Journal Name:
Physical Review D
Volume:
107
Issue:
2
ISSN:
2470-0010
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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