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ISS: Intersectional Sessions

ISS 1: Micro Mechanical Oscillator 1 (Q, TT)

ISS 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 Wernicke^2,3, 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.