中文摘要：

利用偏心球形粒子对任意角度入射有形波束散射的理论,从广义米理论出发,根据电磁场的动量守恒及麦克斯韦张量,推导了任意入射波束对偏心球形粒子辐射俘获力的级数表达式,并以高斯波束为例,就离轴入射有吸收偏心球形粒子时的辐射俘获力进行了数值模拟,讨论了束腰半径、吸收系数、内核的相对大小及位置对俘获情况的影响.

英文摘要：

Based on the theory of the scattering of an eccentric sphere arbitrarily illuminated by a shaped beam which is recently presented by us, and according to generalized Lorenz - Mie theory （GLMT）, we derived the series expressions of radiation forces exerted by the incident beam on an eccentric sphere by using the conservation law of electromagnetic momentum and the Mexwell - Tensor. As an example, numerical results of radiation force of absorbing eccentric spheres for off- axis incidence of Gaussian beam are given, along with a discussion about the influence of the beam - waist radius, relative complex refractive index, relative size and location of the inclusion on the forces.