Roels Joris, De Vlaminck Iwijn, Lagae Liesbet, Maes Bjorn, Van Thourhout Dries, Baets Roel
Department of Information Technology (INTEC), Ghent University, IMEC, Gent, Belgium.
Nat Nanotechnol. 2009 Aug;4(8):510-3. doi: 10.1038/nnano.2009.186. Epub 2009 Jul 13.
The confinement of light in components with nanoscale cross-sections in nanophotonic circuits significantly enhances the magnitude of the optical forces experienced by these components. Here we demonstrate optical gradient forces between two nanophotonic waveguides, and show that the sign of the force can be tuned from attractive to repulsive by controlling the relative phase of the optical fields injected into the waveguides. The optical gradient force could have applications in optically tunable microphotonic devices and nanomechanical systems.
在纳米光子电路中，光被限制在具有纳米级横截面的组件中，这显著增强了这些组件所经历的光学力的大小。在这里，我们展示了两个纳米光子波导之间的光学梯度力，并表明通过控制注入到波导中的光场的相对相位，可以将力的符号从吸引力调整为排斥力。光学梯度力可应用于光学可调谐微光子器件和纳米机械系统。
