中文摘要：

利用（1＋1）维Snyder-Mitchell模型讨论了由强非局域介质构成的平面介质波导中同频率和同极化的双光束和三光束同向共同传输的相互作用过程，得到了任意斜入射双光束和三光束相互作用的精确解析解．强非局域空间光孤子的相互作用过程是其特殊情况．基于强非局域空间光孤子的相互作用原理，提出了实现光子开关、光子“同”（XNOR）和“或非”（NOR）逻辑的新理论方案，并讨论这些基本光子信息处理器件的优化设计问题．

英文摘要：

Based on the （ 1 ＋ 1 ）-dimensional Snyder-Mitchell model, discussed is the interactions of a pair of optical beams and the three optical beams with some frequencies and polarizations co-propagating in （1 ＋ 1 ）-dimensional strong nonlocal nonlinear media. The exact analytical solutions of the interactions are obtained for the arbitrarily oblique incident beams .The interactions of strongly nonlocal spatial optical solitons are the specific cases of such interactions. Through the collisional behavior of the solitons, the photonic switching/logic are presented. The optimal designs of these photonic devices are discussed.