Speaker
Description
Cavity optomechanics can be used to improve the sensitivity of gravitational-wave detectors via optomechanical filtering and ponderomotive squeezing. Here we present a concept for double resonant enhancement of optomechanical interaction in a multi-cavity optomechanical system that exhibits resonance splitting tuned to be equal to the mechanical resonant frequency. In a detuned cavity in the resolved sideband regime this leads to simultaneous resonant enhancement of the carrier and one of the sidebands of the optical field, drastically increasing the optomechanical coupling strength. We present the design for a proof-of-principle table-top experiment based on highly reflective crystalline GaAs/AlGaAs micro-mechanical resonators, provide estimations for required parameter values, discuss the applications and give update on the current status of the experimental project.
