Details
| Original language | English |
|---|---|
| Article number | 2388 |
| Journal | Scientific reports |
| Volume | 13 |
| Issue number | 1 |
| Publication status | Published - 10 Feb 2023 |
Abstract
We report a reduction in motion for suspended seismic-isolation platforms in a gravitational wave detector prototype facility. We sense the distance between two seismic-isolation platforms with a suspension platform interferometer and the angular motion with two optical levers. Feedback control loops reduce the length changes between two platforms separated by 11.65m to 10pmHz-1/2 at 100mHz, and the angular motion of each platform is reduced to 1nradHz-1/2 at 100mHz. As a result, the length fluctuations in a suspended optical resonator on top of the platforms is reduced by three orders of magnitude. This result is of direct relevance to gravitational wave detectors that use similar suspended optics and seismic isolation platforms.
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In: Scientific reports, Vol. 13, No. 1, 2388, 10.02.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A study on motion reduction for suspended platforms used in gravitational wave detectors
AU - Koehlenbeck, Sina M.
AU - Mow-Lowry, Conor M.
AU - Bergmann, Gerald
AU - Kirchoff, Robin
AU - Koch, Philip
AU - Kühn, Gerrit
AU - Lehmann, Johannes
AU - Oppermann, Patrick
AU - Wöhler, Janis
AU - Wu, David S.
N1 - Funding Information: The authors wish to thank Brian T. Lantz, Prof. Kenneth A. Strain, Harald Lück, and Prof. Karsten Danzmann for their continuing support. The authors acknowledge support from the International Max Planck Research School (IMPRS) on Gravitational Wave Astronomy and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2123 QuantumFrontiers—390837967.
PY - 2023/2/10
Y1 - 2023/2/10
N2 - We report a reduction in motion for suspended seismic-isolation platforms in a gravitational wave detector prototype facility. We sense the distance between two seismic-isolation platforms with a suspension platform interferometer and the angular motion with two optical levers. Feedback control loops reduce the length changes between two platforms separated by 11.65m to 10pmHz-1/2 at 100mHz, and the angular motion of each platform is reduced to 1nradHz-1/2 at 100mHz. As a result, the length fluctuations in a suspended optical resonator on top of the platforms is reduced by three orders of magnitude. This result is of direct relevance to gravitational wave detectors that use similar suspended optics and seismic isolation platforms.
AB - We report a reduction in motion for suspended seismic-isolation platforms in a gravitational wave detector prototype facility. We sense the distance between two seismic-isolation platforms with a suspension platform interferometer and the angular motion with two optical levers. Feedback control loops reduce the length changes between two platforms separated by 11.65m to 10pmHz-1/2 at 100mHz, and the angular motion of each platform is reduced to 1nradHz-1/2 at 100mHz. As a result, the length fluctuations in a suspended optical resonator on top of the platforms is reduced by three orders of magnitude. This result is of direct relevance to gravitational wave detectors that use similar suspended optics and seismic isolation platforms.
UR - http://www.scopus.com/inward/record.url?scp=85147893346&partnerID=8YFLogxK
U2 - 10.1038/s41598-023-29418-x
DO - 10.1038/s41598-023-29418-x
M3 - Article
C2 - 36765077
AN - SCOPUS:85147893346
VL - 13
JO - Scientific reports
JF - Scientific reports
SN - 2045-2322
IS - 1
M1 - 2388
ER -