Projects per year
Abstract
The network of interferometric gravitational-wave observatories has successfully detected tens of astrophysical signals since 2015. In this paper, we experimentally investigate compact sensors that have the potential to improve the sensitivity of gravitational-wave detectors to intermediate-mass black holes. We use only commercial components, such as sensing heads and lasers, to assemble the setup and demonstrate its subpicometer precision. The setup consists of a pair of Michelson interferometers that use deep frequency modulation techniques to obtain a linear, relative displacement readout over multiple interference fringes. We implement a laser-frequency stabilization scheme to achieve a sensitivity of 0.3 pm / √Hz above 0.1 Hz. The device has also the potential to improve other experiments, such as torsion balances and commercial seismometers.
Original language | English |
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Article number | 034040 |
Number of pages | 8 |
Journal | Physical Review Applied |
Volume | 18 |
Issue number | 3 |
DOIs | |
Publication status | Published - 15 Sept 2022 |
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Dive into the research topics of 'Compact Michelson Interferometers with Subpicometer Sensitivity'. Together they form a unique fingerprint.Projects
- 2 Finished
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Astrophysics at the University of Birmingham
Speake, C., Martynov, D., Stevens, I., Mow-Lowry, C., Vecchio, A., Smith, G., McGee, S., Freise, A., Miao, H., Gough, R. & Windridge, D.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/04/19 → 31/03/23
Project: Research
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Gravitational Wave Astronomy at the University of Birmingham, STFC Equipment Call 2018
Miao, H., Martynov, D., Vecchio, A., Mow-Lowry, C. & Freise, A.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/10/18 → 30/06/19
Project: Research Councils