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2007 Class. Quantum Grav. 24 5681-5688 doi: 10.1088/0264-9381/24/22/025
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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.
PACS numbers: 04.80.Nn, 95.75.Kk
Print publication: Issue 22 (21 November 2007) |
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