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Conferences > CLEO_QELS > 2015 > FTh1B > FTh1B.2

Feedback Cooling of a Nanomechanical Oscillator to Near its Quantum Ground State

D. J. Wilson, V. Sudhir, N. Piro, R. Schilling, A. Ghadimi, and T. J. Kippenberg

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Abstract

Cavity-enhanced interferometry is used to resolve the displacement of a 4.3 MHz nanobeam oscillator with an imprecision 40 dB below that at the standard quantum limit. Employing this measurement as an error signal, radiation pressure is used to feedback cool the oscillator to 5.3 mechanical quanta.

© 2015 Optical Society of America

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