Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 1, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3608148
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- FOM
- NWO
- NanoNed
- EU
- JSPS KAKENHI [20246064, 23241046]
- Grants-in-Aid for Scientific Research [23241046, 20246064] Funding Source: KAKEN
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We have employed a feedback cooling scheme, which combines high-frequency mixing with digital signal processing. The frequency and damping rate of a 2 MHz micromechanical resonator embedded in a dc SQUID are adjusted with the feedback, and active cooling to a temperature of 14.3 mK is demonstrated. This technique can be applied to GHz resonators and allows for flexible control strategies. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3608148]
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