Dresden 2011 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 1: Micro Mechanical Oscillator 1
Q 1.4: Vortrag
Montag, 14. März 2011, 11:15–11:30, HSZ 02
A closed-cycle dilution refrigerator with free-space and fiber optical access for quantum optomechanics experiments at 20mK — •Witlef Wieczorek1, Simon Gröblacher1, Matthias Bühler2, Peter Christ2, Jens Höhne2, Doreen Wernicke2,3, and Markus Aspelmeyer1 — 1University of Vienna, Faculty of Physics, A-1090 Vienna, Austria — 2VeriCold Technologies GmbH, Bahnhofstr. 21, D-85737 Ismaning, Germany — 3Entropy GmbH, Gmundner Str. 37a, D-81379 Munich, Germany
We report on the operation of a closed-cycle dilution refrigerator for quantum optomechanics experiments at 20mK. The sample chamber of the dilution fridge is optically accessible both via optical windows as well as optical fibers, allowing us to perform a variety of optical experiments at low temperatures. It is designed to vibrationally isolate the sample chamber allowing for stable operation of a high-finesse optical cavity. This enables us to perform cavity-optomechanics experiments at ultra-low temperatures.