Favuzzi Pedro A, Bardoux Richard, Asano Takashi, Kawakami Yoichi, Noda Susumu
Opt Express. 2013 Dec 2;21(24):29129-39. doi: 10.1364/OE.21.029129.
In this paper we investigate the optical forces induced by localized optical modes propagating along three parallel waveguides, of which only the central one is free to move. In this configuration, when all three waveguides are identical, the components of the optical-force acting on the free beam are decoupled along the axis of symmetry. As a result, two dimensional optomechanical control of the central waveguide, like single-mode optical trapping, can be achieved. We also study non symmetric configurations, that can be used, for example, to tailor the position of the optical trap. Unlike other techniques that rely on buckling, multi-mode excitation or radiation-pressure, single-mode optomechanical-operation should help the realization of faster and simpler on-chip positioning of a single nanobeam since most of the parameters involved can be controlled with great precision.
在本文中，我们研究了沿三条平行波导传播的局域光学模式所诱导的光学力，其中只有中央波导可以自由移动。在这种配置下，当三条波导完全相同时，作用在自由光束上的光学力分量沿对称轴解耦。因此，可以实现对中央波导的二维光机械控制，如单模光学捕获。我们还研究了非对称配置，例如可用于调整光学陷阱的位置。与其他依赖于屈曲、多模激发或辐射压力的技术不同，单模光机械操作应有助于实现单个纳米光束更快、更简单的片上定位，因为所涉及的大多数参数都可以高精度控制。
