Berlin 2014 – scientific programme
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A: Fachverband Atomphysik
A 44: Precision measurements and metrology I (with Q)
A 44.7: Talk
Thursday, March 20, 2014, 15:45–16:00, DO24 1.101
Cryogenic Sapphire Optical Cavities — •Moritz Nagel, Klaus Döringshoff, Sylvia Schikora, Evgeny V. Kovalchuk, and Achim Peters — Humboldt-Universität zu Berlin, Institut für Physik, AG Optische Metrologie, Newtonstr. 15, 12489 Berlin
We present the status of our work on an ultra-stable cryogenically cooled sapphire optical cavity system, with a prospective thermal noise limited frequency stability better than 3·10−17. These cavities will be used in a high-precision experiment, which will test Lorentz invariance within the 10−20 regime.