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  Photon-pressure-induced test mass deformation in gravitational-wave detectors

Hild, S., Brinkmann, M., Danzmann, K., Grote, H., Hewitson, M., Hough, J., et al. (2007). Photon-pressure-induced test mass deformation in gravitational-wave detectors. Classical and Quantum Gravity, 24(22), 5681-5688. doi:10.1088/0264-9381/24/22/025.

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Hild, Stefan1, Author           
Brinkmann, Marc1, Author           
Danzmann, Karsten1, Author           
Grote, Hartmut1, Author           
Hewitson, Martin2, Author           
Hough, J.1, 2, 3, Author
Lück, Harald1, Author           
Martin, Ian, Author
Mossavi, Kasem1, Author           
Rainer, N.1, 2, 3, Author
Reid, S., Author
Smith, J. R., Author
Strain, Ken A.1, Author           
Weinert, Michael1, Author           
Willems, P., Author
Willke, Benno1, Author           
Winkler, Walter1, Author           
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              
2Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              
3AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24009              

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 Abstract: A widely used assumption within the gravitational-wave community has so far been that a test mass acts like a rigid body for frequencies in the detection band, i.e. for frequencies far below the first internal resonance. In this paper, we demonstrate that localized forces, applied for example by a photon pressure actuator, can result in a non-negligible elastic deformation of the test masses. For a photon pressure actuator setup used in the gravitational-wave detector GEO 600, we measured that this effect modifies the standard response function by 10% at 1 kHz and about 100% at 2.5 kHz.

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 Dates: 2007-11-21
 Publication Status: Issued
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 Identifiers: eDoc: 334871
ISI: 000251428400025
DOI: 10.1088/0264-9381/24/22/025
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Title: Classical and Quantum Gravity
Source Genre: Journal
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Pages: - Volume / Issue: 24 (22) Sequence Number: - Start / End Page: 5681 - 5688 Identifier: ISSN: 0264-9381