Cavity optoelectromechanical regenerative amplification.
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.
Centre for Engineered Quantum Systems, University of Queensland, St Lucia, Queensland 4072, Australia.
Michael A
MA
Taylor
Alex
A
Szorkovszky
Joachim
J
Knittel
Kwan H
KH
Lee
Terry G
TG
McRae
Warwick P
WP
Bowen