Kleckner Dustin, Marshall William, de Dood Michiel J A, Dinyari Khodadad Nima, Pors Bart-Jan, Irvine William T M, Bouwmeester Dirk
Department of Physics, University of California, Santa Barbara, 93106, USA.
Phys Rev Lett. 2006 May 5;96(17):173901. doi: 10.1103/PhysRevLett.96.173901. Epub 2006 May 2.
We report on the demonstration of a high finesse micro-optomechanical system and identify potential applications ranging from optical cooling to weak force detection to massive quantum superpositions. The system consists of a high quality diameter flat dielectric mirror cut from a larger substrate with a focused ion beam and attached to an atomic force microscope cantilever. Cavity ring-down measurements performed on a 25 mm long Fabry-Pérot cavity with the 30 microm mirror at one end show an optical finesse of 2100. Numerical calculations show that the finesse is not diffraction limited and that orders of magnitude higher finesse should be possible. A mechanical quality factor of more than 10(5) at pressures below 10(-3) mbar is demonstrated for the cantilever with a mirror attached.
我们报告了一种高精细度微光学机械系统的演示，并确定了其潜在应用范围，包括从光学冷却到弱力检测再到大量子叠加。该系统由一个从较大衬底上用聚焦离子束切割下来的高质量直径平面介质镜组成，并附着在原子力显微镜悬臂上。在一端带有30微米镜子的25毫米长法布里-珀罗腔上进行的腔衰荡测量显示光学精细度为2100。数值计算表明，精细度不受衍射限制，并且有可能实现更高数量级的精细度。对于附着有镜子的悬臂，在压力低于10^(-3) 毫巴时展示出超过10^5 的机械品质因数。
