丽莎探路者号中的传感器噪声：光学测试质量读出的飞行性能

Sensor Noise in LISA Pathfinder: In-Flight Performance of the Optical Test Mass Readout.

作者信息

Armano M, Audley H, Baird J, Binetruy P, Born M, Bortoluzzi D, Brandt N, Castelli E, Cavalleri A, Cesarini A, Cruise A M, Danzmann K, de Deus Silva M, Diepholz I, Dixon G, Dolesi R, Ferraioli L, Ferroni V, Fitzsimons E D, Flatscher R, Freschi M, García A, Gerndt R, Gesa L, Giardini D, Gibert F, Giusteri R, Grimani C, Grzymisch J, Guzman F, Harrison I, Hartig M-S, Heinzel G, Hewitson M, Hollington D, Hoyland D, Hueller M, Inchauspé H, Jennrich O, Jetzer P, Johann U, Johlander B, Karnesis N, Kaune B, Killow C J, Korsakova N, Lobo J A, Liu L, López-Zaragoza J P, Maarschalkerweerd R, Mance D, Martín V, Martin-Polo L, Martin-Porqueras F, Martino J, McNamara P W, Mendes J, Mendes L, Meshksar N, Monsky A, Nofrarias M, Paczkowski S, Perreur-Lloyd M, Petiteau A, Pivato P, Plagnol E, Ramos-Castro J, Reiche J, Rivas F, Robertson D I, Russano G, Sanjuan J, Slutsky J, Sopuerta C F, Steier F, Sumner T, Texier D, Thorpe J I, Vetrugno D, Vitale S, Wand V, Wanner G, Ward H, Wass P J, Weber W J, Wissel L, Wittchen A, Zweifel P

机构信息

European Space Technology Centre, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, The Netherlands.

Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany.

出版信息

Phys Rev Lett. 2021 Apr 2;126(13):131103. doi: 10.1103/PhysRevLett.126.131103.

DOI:10.1103/PhysRevLett.126.131103

PMID:33861094

Abstract

We report on the first subpicometer interferometer flown in space. It was part of ESA's Laser Interferometer Space Antenna (LISA) Pathfinder mission and performed the fundamental measurement of the positional and angular motion of two free-falling test masses. The interferometer worked immediately, stably, and reliably from switch on until the end of the mission with exceptionally low residual noise of 32.0_{-1.7}^{+2.4} fm/sqrt[Hz], significantly better than required. We present an upper limit for the sensor performance at millihertz frequencies and a model for the measured sensitivity above 200 mHz.

摘要

我们报告了首个在太空中飞行的亚皮米干涉仪。它是欧洲航天局激光干涉空间天线（LISA）探路者任务的一部分，对两个自由下落的测试质量块的位置和角运动进行了基本测量。该干涉仪从开启到任务结束一直立即、稳定且可靠地工作，残余噪声极低，为32.0_{-1.7}^{+2.4} fm/√Hz，显著优于要求指标。我们给出了毫赫兹频率下传感器性能的上限以及高于200 mHz时测量灵敏度的模型。