dc.identifier.uri |
http://dx.doi.org/10.15488/10588 |
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dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/10665 |
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dc.contributor.author |
Chwalla, M.
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dc.contributor.author |
Danzmann, K.
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dc.contributor.author |
Álvarez, M.D.
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dc.contributor.author |
Delgado, J.J.E.
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dc.contributor.author |
Fernández Barranco, G.
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dc.contributor.author |
Fitzsimons, E.
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dc.contributor.author |
Gerberding, O.
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dc.contributor.author |
Heinzel, G.
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dc.contributor.author |
Killow, C.J.
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dc.contributor.author |
Lieser, M.
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dc.contributor.author |
Perreur-Lloyd, M.
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dc.contributor.author |
Robertson, D.I.
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dc.contributor.author |
Rohr, J.M.
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dc.contributor.author |
Schuster, S.
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dc.contributor.author |
Schwarze, T.S.
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dc.contributor.author |
Tröbs, M.
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dc.contributor.author |
Wanner, G.
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dc.contributor.author |
Ward, H.
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dc.date.accessioned |
2021-03-23T09:46:12Z |
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dc.date.available |
2021-03-23T09:46:12Z |
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dc.date.issued |
2020 |
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dc.identifier.citation |
Chwalla, M.; Danzmann, K.; Álvarez, M.D.; Delgado, J.J.E.; Fernández, Barranco, G. et al.: Optical Suppression of Tilt-to-Length Coupling in the LISA Long-Arm Interferometer. In: Physical Review Applied 14 (2020), Nr. 1, 14030. DOI: https://doi.org/10.1103/PhysRevApplied.14.014030 |
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dc.description.abstract |
The arm length and the isolation in space enable the Laser Interferometer Space Antenna (LISA) to probe for signals unattainable on the ground, opening a window to the subhertz gravitational-wave universe. The coupling of unavoidable angular spacecraft jitter into the longitudinal displacement measurement, an effect known as tilt-to-length (TTL) coupling, is critical for realizing the required sensitivity of picometer/Hz. An ultrastable interferometer test bed has been developed in order to investigate this issue and validate mitigation strategies in a setup representative of LISA and in this paper it is operated in the long-arm interferometer configuration. The test bed is fitted with a flat-top beam generator to simulate the beam received by a LISA spacecraft. We demonstrate a reduction of TTL coupling between this flat-top beam and a Gaussian reference beam via the introduction of two- and four-lens imaging systems. TTL coupling factors below ±25μm/rad for beam tilts within ±300μrad are obtained by careful optimization of the system. Moreover, we show that the additional TTL coupling due to lateral-alignment errors of elements of the imaging system can be compensated by introducing lateral shifts of the detector and vice versa. These findings help validate the suitability of this noise-reduction technique for the LISA long-arm interferometer. © 2020 authors. Published by the American Physical Society. |
eng |
dc.language.iso |
eng |
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dc.publisher |
College Park, MD : American Physical Society |
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dc.relation.ispartofseries |
Physical Review Applied 14 (2020), Nr. 1 |
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dc.rights |
CC BY 4.0 Unported |
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dc.rights.uri |
https://creativecommons.org/licenses/by/4.0/ |
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dc.subject |
Acoustooptical effects |
eng |
dc.subject |
Antennas |
eng |
dc.subject |
Equipment testing |
eng |
dc.subject |
Gaussian beams |
eng |
dc.subject |
Gravity waves |
eng |
dc.subject |
Imaging systems |
eng |
dc.subject |
Laser interferometry |
eng |
dc.subject |
Transistor transistor logic circuits |
eng |
dc.subject |
Coupling factor |
eng |
dc.subject |
Laser interferometer space antenna |
eng |
dc.subject |
Lateral alignment |
eng |
dc.subject |
Longitudinal displacements |
eng |
dc.subject |
Mitigation strategy |
eng |
dc.subject |
Noise reduction technique |
eng |
dc.subject |
Reference beams |
eng |
dc.subject |
Spacecraft jitter |
eng |
dc.subject |
Interferometers |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Optical Suppression of Tilt-to-Length Coupling in the LISA Long-Arm Interferometer |
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dc.type |
Article |
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dc.type |
Text |
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dc.relation.essn |
2331-7019 |
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dc.relation.doi |
https://doi.org/10.1103/PhysRevApplied.14.014030 |
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dc.bibliographicCitation.issue |
1 |
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dc.bibliographicCitation.volume |
14 |
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dc.bibliographicCitation.firstPage |
14030 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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