An ultra-low dissipation micro-oscillator for quantum opto-mechanics

Abstract

Generating non-classical states of light by opto-mechanical coupling depends critically on the mechanical and optical properties of micro-oscillators and on the minimization of thermal noise. We present an oscillating micro-mirror with a mechanical quality factor Q = 2.6x10^6 at cryogenic temperature and a Finesse of 65000, obtained thanks to an innovative approach to the design and the control of mechanical dissipation. Already at 4 K with an input laser power of 2 mW, the radiation-pressure quantum fluctuations become the main noise source, overcoming thermal noise. This feature makes our devices particularly suitable for the production of pondero-motive squeezing.

21 pages including Supplementary Information

References in corpus (15)

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Cited by in corpus (8)

• Cavity Optomechanics
• Dynamical two-mode squeezing of thermal fluctuations in a cavity opto-mechanical system
• Detection of weak stochastic force in a parametrically stabilized micro opto-mechanical system
• Frequency noise cancellation in optomechanical systems for ponderomotive squeezing
• Nested Trampoline Resonators for Optomechanics
• Tests of Quantum Gravity-Induced Non-Locality via Opto-mechanical Experiments
• High-Q nested resonator in an actively stabilized optomechanical cavity
• Cavity Optomechanical Probe of Gravity Between Massive Mechanical Oscillators