Cryogenic properties of optomechanical silica microcavities

Abstract

We present the optical and mechanical properties of high-Q fused silica microtoroidal resonators at cryogenic temperatures (down to 1.6 K). A thermally induced optical multistability is observed and theoretically described; it serves to characterize quantitatively the static heating induced by light absorption. Moreover the influence of structural defect states in glass on the toroid mechanical properties is observed and the resulting implications of cavity optomechanical systems on the study of mechanical dissipation discussed.

4 pages, 3 figures

References in corpus (7)

• Radiation-pressure cooling and optomechanical instability of a micro-mirror
• Self-cooling of a micro-mirror by radiation pressure
• Resolved Sideband Cooling of a Micromechanical Oscillator
• High-sensitivity optical monitoring of a micro-mechanical resonator with a quantum-limited optomechanical sensor
• High-sensitivity monitoring of micromechanical vibration using optical whispering gallery mode resonators
• Probing the quantum coherence of a nanomechanical resonator using a superconducting qubit: I. Echo scheme
• Demonstration of Ultra Low Dissipation Optomechanical Resonators on a Chip

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