Building blocks for future detectors: Silicon test masses and 1550 nm laser light

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Schnabel, R.; Britzger, M.; Brückner, F.; Burmeister, O.; Danzmann, K. et al.: Building blocks for future detectors: Silicon test masses and 1550 nm laser light. In: Journal of Physics: Conference Series 228 (2010), 12029. DOI: https://doi.org/10.1088/1742-6596/228/1/012029

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/1415

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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.
License of this version: CC BY 3.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2010
Appears in Collections:Fakultät für Mathematik und Physik

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1 image of flag of Germany Germany 105 97.22%
2 image of flag of Japan Japan 1 0.93%
3 image of flag of Denmark Denmark 1 0.93%
4 image of flag of China China 1 0.93%

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