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Strong and Tunable Nonlinear Optomechanical Coupling in a Low-Loss System
Jack C. Sankey, Cheng Yang, Benjamin M. Zwickl +2
A major goal in optomechanics is to observe and control quantum behavior in a system consisting of a mechanical resonator coupled to an optical cavity. Work towards this goal has f…
Improved "Position Squared" Readout of a Mechanical Resonator in an Optical Cavity Using Degenerate Optical Modes
Jack C. Sankey, Andrew M. Jayich, Benjamin M. Zwickl +2
Optomechanical devices in which a flexible SiN membrane is placed inside an optical cavity allow for very high finesse and mechanical quality factor in a single device. They also p…
Dispersive optomechanics: a membrane inside a cavity
A. M. Jayich, J. C. Sankey, B. M. Zwickl +6
We present the results of theoretical and experimental studies of dispersively coupled (or "membrane in the middle") optomechanical systems. We calculate the linear optical propert…
High quality mechanical and optical properties of commercial silicon nitride membranes
B. M. Zwickl, W. E. Shanks, A. M. Jayich +4
We have measured the optical and mechanical loss of commercial silicon nitride membranes. We find that 50 nm-thick, 1 mm^2 membranes have mechanical Q > 10^6 at 293 K, and Q > 10^7…
Strong dispersive coupling of a high finesse cavity to a micromechanical membrane
J. D. Thompson, B. M. Zwickl, A. M. Jayich +3
Macroscopic mechanical objects and electromagnetic degrees of freedom couple to each other via radiation pressure. Optomechanical systems with sufficiently strong coupling are pred…