Journal
APPLIED PHYSICS LETTERS
Volume 107, Issue 26, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4938747
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Funding
- Dutch Organization for Fundamental Research on Matter (FOM)
- Netherlands Organization for Scientific Research (NWO) through the Innovative Research Incentives Scheme (VIDI)
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We study the mechanical dissipation of the fundamental mode of millimeter-sized, high quality-factor (Q) metalized silicon nitride membranes at temperatures down to 14 mK using a three-dimensional optomechanical cavity. Below 200 mK, high-Q modes of the membranes show a diverging increase of Q with decreasing temperature, reaching Q = 1.27 x 10(8) at 14 mK, an order of magnitude higher than that reported before. The ultra-low dissipation makes the membranes highly attractive for the study of optomechanics in the quantum regime, as well as for other applications of optomechanics such as microwave to optical photon conversion. (C) 2015 AIP Publishing LLC.
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