Zang Wei-Ping, Yang Yang, Zhao Zhi-Yu, Tian Jian-Guo
Photonics Center, School of Physics, Nankai University, Tianjin 300071, China.
Opt Express. 2013 May 20;21(10):12373-84. doi: 10.1364/OE.21.012373.
In this paper we discuss the effects of multiple scattering to the optical forces on a particle by an evanescent field. We show that the iterative method to process the effects of the interaction between the particle and a plane surface is invalid when the radius of particle is large or when the structural resonance of the particle occurs. By using the generalized minimum residual method to solve the set of equations directly, the divergence appears in the iterative method can be removed completely. As an illustrative example, we discussed the effects of multiple scattering to optical forces on a particle in an evanescent field from an incident plane wave. The interpretations of numerical results are presented in detail.
在本文中，我们讨论了倏逝场中多次散射对粒子光学力的影响。我们表明，当粒子半径较大或粒子发生结构共振时，用于处理粒子与平面表面相互作用影响的迭代方法是无效的。通过使用广义最小残差法直接求解方程组，可以完全消除迭代方法中出现的发散。作为一个示例，我们讨论了来自入射平面波的倏逝场中多次散射对粒子光学力的影响。详细给出了数值结果的解释。
