标题： 纵向位移的光子晶体纳米线波导之间的慢光增强光学力 显示英文标题

标题： Slow-light enhanced optical forces between longitudinally shifted photonic-crystal nanowire waveguides

摘要： 我们揭示了通过引入相对纵向位移，可以灵活控制侧耦合光子晶体纳米线波导之间的慢光增强的光学力。 我们预测在光子带边附近，群速度降低时，横向力可以从排斥变为吸引，并且对于特定的位移值，力会被抑制。 此外，这种位移会导致对称性破缺，从而促进作用在波导上的纵向力，这与未位移结构中此类力消失的情况形成对比。 显示英文摘要

摘要： We reveal that slow-light enhanced optical forces between side-coupled photonic-crystal nanowire waveguides can be flexibly controlled by introducing a relative longitudinal shift. We predict that close to the photonic band-edge, where the group velocity is reduced, the transverse force can be tuned from repulse to attractive, and the force is suppressed for a particular shift value. Additionally the shift leads to symmetry breaking that can facilitate longitudinal forces acting on the waveguides, in contrast to unshifted structures where such forces vanish.