title: Aerostatically tunable optomechanical oscillators.
abstract: Recently, the first microfluidic optomechanical device was demonstrated, capable of operating with non-solid states of matter (viscous fluids, bioanalytes). These devices exhibit optomechanical oscillation in both the 10-20 MHz and 10-12 GHz regimes, driven by radiation pressure (RP) and stimulated Brillouin scattering (SBS) respectively. In this work, we experimentally investigate aerostatic tuning of these hollow-shell oscillators, enabled by geometry, stress, and temperature effects. We also demonstrate for the first time the simultaneous actuation of RP-induced breathing mechanical modes and SBS-induced whispering gallery acoustic modes, through a single pump laser. Our result is a step towards completely self-referenced optomechanical sensor technologies.
authors: Kewen
authors: K
authors: Han
authors: Jun Hwan
authors: JH
authors: Kim
authors: Gaurav
authors: G
authors: Bahl
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D055096:Optical Devices; D009991:Oscillometry / Q000295:instrumentation*; D011312:Pressure; D012031:Refractometry / Q000295:instrumentation*