Schliesser A, Del'Haye P, Nooshi N, Vahala K J, Kippenberg T J
Max Planck Institut für Quantenoptik, 85748 Garching, Germany.
Phys Rev Lett. 2006 Dec 15;97(24):243905. doi: 10.1103/PhysRevLett.97.243905. Epub 2006 Dec 14.
Cooling of a 58 MHz micromechanical resonator from room temperature to 11 K is demonstrated using cavity enhanced radiation pressure. Detuned pumping of an optical resonance allows enhancement of the blueshifted motional sideband (caused by the oscillator's Brownian motion) with respect to the redshifted sideband leading to cooling of the mechanical oscillator mode. The reported cooling mechanism is a manifestation of the effect of radiation pressure induced dynamical backaction. These results constitute an important step towards achieving ground state cooling of a mechanical oscillator.
利用腔增强辐射压力，演示了将一个58兆赫兹的微机械谐振器从室温冷却至11开尔文。对光学谐振进行失谐泵浦，相对于红移边带增强了蓝移的运动边带（由振荡器的布朗运动引起），从而导致机械振荡器模式冷却。所报道的冷却机制是辐射压力诱导动态反作用效应的一种表现。这些结果是朝着实现机械振荡器基态冷却迈出的重要一步。
