Kippenberg Tobias J, Vahala Kerry J
Opt Express. 2007 Dec 10;15(25):17172-205. doi: 10.1364/oe.15.017172.
The coupling of mechanical and optical degrees of freedom via radiation pressure has been a subject of early research in the context of gravitational wave detection. Recent experimental advances have allowed studying for the first time the modifications of mechanical dynamics provided by radiation pressure. This paper reviews the consequences of back-action of light confined in whispering-gallery dielectric microcavities, and presents a unified treatment of its two manifestations: notably the parametric instability (mechanical amplification and oscillation) and radiation pressure back-action cooling. Parametric instability offers a novel "photonic clock" which is driven purely by the pressure of light. In contrast, radiation pressure cooling can surpass existing cryogenic technologies and offers cooling to phonon occupancies below unity and provides a route towards cavity Quantum Optomechanics.
通过辐射压力实现机械自由度与光学自由度的耦合，一直是引力波探测领域早期研究的一个课题。近期的实验进展使得首次能够研究辐射压力对机械动力学的修正。本文回顾了限制在回音壁介质微腔中的光的反作用的后果，并对其两种表现形式进行了统一论述：特别是参量不稳定性（机械放大和振荡）以及辐射压力反作用冷却。参量不稳定性提供了一种全新的“光子钟”，它完全由光压驱动。相比之下，辐射压力冷却能够超越现有的低温技术，实现将声子占有率冷却至低于1，并为腔量子光力学开辟了一条道路。
