Tilt interferometer for detecting gravitational wave signals at high frequencies

S. Yu, C. Zhao, D. Blair, C. Blair, J. Liu, Q. Fang, L. Ju, F. Zhang

Research output: Chapter in Book/Conference paperConference paper

Abstract

We propose a tilt interferometer to search for gravitational wave (GW) signals at high frequencies. The torque caused by a cross-polarized gravitational wave passing through the mirrors in an interferometer can result in a tilt motion, which generates a TEM10 transverse mode of the cavity. The GW signal can then be detected as a beating between the TEM00 and TEM10 modes. There are two types of mirror motion that are relevant: the aforementioned rotation, as well as a translation in parallel to the front surface of the end mirror, in the local reference frame of the input test masses. We estimate that possible implementations could achieve a strain sensitivity of ∼7 10-22 Hz-1/2 in the frequency band of 100-500 kHz, limited by thermal and shot noises. A preliminary design for a prototype detector with a 74m optical cavity is presented.

Original languageEnglish
Title of host publicationProceedings of the Eleventh International Conference on Information Optics and Photonics (CIOP 2019)
EditorsHannan Wang
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Volume11209
ISBN (Electronic)9781510631731
DOIs
Publication statusPublished - 1 Jan 2019
Event11th International Conference on Information Optics and Photonics, CIOP 2019 - Xi'an, China
Duration: 6 Aug 20199 Aug 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11209
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference11th International Conference on Information Optics and Photonics, CIOP 2019
CountryChina
CityXi'an
Period6/08/199/08/19

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