High-sensitivity optical monitoring of a micromechanical resonator with a quantum-limited optomechanical sensor |
| |
Authors: | Arcizet O Cohadon P-F Briant T Pinard M Heidmann A Mackowski J-M Michel C Pinard L Français O Rousseau L |
| |
Institution: | Laboratoire Kastler Brossel, Université Pierre et Marie Curie, Case 74, 4 place Jussieu, F75252 Paris Cedex 05, France. |
| |
Abstract: | We experimentally demonstrate the high-sensitivity optical monitoring of a micromechanical resonator and its cooling by active control. Coating a low-loss mirror upon the resonator, we have built an optomechanical sensor based on a very high-finesse cavity (30 000). We have measured the thermal noise of the resonator with a quantum-limited sensitivity at the 10(-19) m/sqrtHz] level, and cooled the resonator down to 5 K by a cold-damping technique. Applications of our setup range from quantum optics experiments to the experimental demonstration of the quantum ground state of a macroscopic mechanical resonator. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|