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Opt Express. 2012 Jun 4;20(12):12742-51. doi: 10.1364/OE.20.012742.

Cavity optoelectromechanical regenerative amplification.

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1
Centre for Engineered Quantum Systems, University of Queensland, St Lucia, Queensland 4072, Australia.

Abstract

Cavity optoelectromechanical regenerative amplification is demonstrated. An optical cavity enhances mechanical transduction, allowing sensitive measurement even for heavy oscillators. A 27.3 MHz mechanical mode of a microtoroid was linewidth narrowed to 6.6 ± 1.4 mHz, 30 times smaller than previously achieved with radiation pressure driving in such a system. These results may have applications in areas such as ultrasensitive optomechanical mass spectroscopy.

PMID:
22714303
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