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arXiv 1101.4237physics.optics
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设计倏逝光相互作用以控制光机结构中Casimir力的表达

Designing evanescent optical interactions to control the expression of Casimir forces in optomechanical structures

Alejandro W. Rodriguez, David Woolf, Pui-Chuen Hui, Eiji Iwase, Alexander P. McCauley, Federico Capasso, Marko Loncar, Steven G. Johnson

摘要:

我们提出了一种光学机械结构,包括一个光子晶体(多孔)膜悬浮在一个分层的绝缘体上硅衬底,其中共振键合/反键合光学力由外部入射光从上面创建,使全光学控制和驱动的静摩擦力引起的卡西米尔力的影响。以这种方式,人们可以控制卡西米尔力如何在膜的机械动力学中表达,不是通过直接改变卡西米尔力,而是通过光学地修改几何形状并抵消机械弹性常数以使系统进入或离开卡西米尔物理学占主导地位的状态。膜对入射光的相同光学响应(反射光谱)可用于精确测量卡西米尔力对膜的平衡分离的影响。

英文摘要:

We propose an optomechanical structure consisting of a photonic-crystal (holey) membrane suspended above a layered silicon-on-insulator substrate in which resonant bonding/antibonding optical forces created by externally incident light from above enable all-optical control and actuation of stiction effects induced by the Casimir force. In this way, one can control how the Casimir force is expressed in the mechanical dynamics of the membrane, not by changing the Casimir force directly but by optically modifying the geometry and counteracting the mechanical spring constant to bring the system in or out of regimes where Casimir physics dominate. The same optical response (reflection spectrum) of the membrane to the incident light can be exploited to accurately measure the effects of the Casimir force on the equilibrium separation of the membrane.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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