Passive cooling of a micromechanical oscillator with a resonant electric circuit

Published

Journal Article

We cool the fundamental mode of a miniature cantilever by capacitively coupling it to a driven rf resonant circuit. Cooling results from the rf capacitive force, which is phase shifted relative to the cantilever motion. We demonstrate the technique by cooling a 7 kHz cantilever from room temperature to 45 K, obtaining reasonable agreement with a model for the cooling, damping, and frequency shift. Extending the method to higher frequencies in a cryogenic system could enable ground state cooling and may prove simpler than related optical experiments in a low temperature apparatus.

Full Text

Duke Authors

Cited Authors

  • Brown, KR; Britton, J; Epstein, RJ; Chiaverini, J; Leibfried, D; Wineland, DJ

Published Date

  • September 26, 2007

Published In

Volume / Issue

  • 99 / 13

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/PhysRevLett.99.137205

Citation Source

  • Scopus