We implement a cavity opto-electromechanical system integrating electrical actuation capabilities of nanoelectromechanical devices with ultrasensitive mechanical transduction achieved via intra-cavity optomechanical coupling. Electrical gradient forces as large as 0.40 microN are realized, with simultaneous mechanical transduction sensitivity of 1.5 X 10^-18 m/rtHz representing a three orders of magnitude improvement over any nanoelectromechanical system to date. Opto-electromechanical feedback cooling is demonstrated, exhibiting strong squashing of the in-loop transduction signal. Out-of-loop transduction provides accurate temperature calibration even in the critical paradigm where measurement backaction induces opto-mechanical correlations.
@article{arxiv.0909.0082,
title = {Cooling and control of a cavity opto-electromechanical system},
author = {Kwan H. Lee and Terry G. McRae and Glen I. Harris and Joachim Knittel and Warwick P. Bowen},
journal= {arXiv preprint arXiv:0909.0082},
year = {2015}
}