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Regensburg 2007 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 21: Solids at Low Temperature - Poster Session

TT 21.17: Poster

Wednesday, March 28, 2007, 14:00–17:45, Poster A

Analysis of mechanical loss processes of low loss materials for interferometric gravitational wave detectors in the low temperature range — •Daniel Heinert1, Anja Zimmer1, Ronny Nawrodt1, Wolfgang Vodel1, Andreas Tünnermann2, and Paul Seidel11Institut für Festkörperphysik, FSU Jena, Helmholtzweg 5, 07743 Jena — 2Institut für Angewandte Physik, FSU Jena, Albert-Einstein-Straße 15, 07745 Jena

Thermal noise introduced by mechanical losses is one main limitation in the detection frequency band of interferometric gravitational wave detectors. Cooling of the optical components could produce a relief insofar as materials featuring low mechanical losses at cryogenic temperatures are used. Influences of different loss mechanisms on the mechanical quality factor are presented, especially under consideration of the excited mode shape.

This work was supported by the DFG under contract SFB Transregio 7.

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