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ID: 442440.0, MPI für Gravitationsphysik / Laser Interferometry & Gravitational Wave Astronomy
Building blocks for future detectors: Silicon test masses and 1550 nm laser light
Authors:Schnabel, R.; Britzger, M.; Bruckner, F.; Burmeister, O.; Danzmann, K.; Dück, J.; Eberle, T.; Friedrich, D.; Lück, H.; Mehmet, M.; Nawrodt, R.; Steinlechner, S.; Willke, B.
Language:English
Title of Journal:Classical and Quantum Gravity
Review Status:not specified
Abstract / Description:Current interferometric gravitational wave detectors use the combination of quasi-monochromatic, continuous-wave laser light at 1064 nm and fused silica test masses at room temperature. Detectors of the third generation, such as the Einstein-Telescope, will involve a considerable sensitivity increase. The combination of 1550 nm laser radiation and crystalline silicon test masses at low temperatures might be important ingredients in order to achieve the sensitivity goal. Here we compare some properties of the fused silica and silicon test mass materials relevant for decreasing the thermal noise in future detectors as well as the recent technology achievements in the preparation of laser radiation at 1064 nm and 1550 nm relevant for decreasing the quantum noise. We conclude that silicon test masses and 1550 nm laser light have the potential to form the future building blocks of gravitational wave detection.
External Publication Status:submitted
Document Type:Article
Communicated by:Karsten Danzmann
Affiliations:MPI für Gravitationsphysik/Teilinstitut Hannover
MPI für Gravitationsphysik/Laser Interferometry & Gravitational Wave Astronomy
Identifiers:LOCALID:arXiv:0912.3164
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Building Blocks.pdf  [192,00 Kb] [Comment:arXiv:0912.3164v1 [physics.ins-det]]  
 
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