We demonstrate the rotating properties of Bragg reflections and spatial lattice solitons in rotating photonic lattices by analyzing the linear and nonlinear propagations of light. It reveals that the Bragg reflection of the light waves rotates synchronously with the lattices, leading to the rotation of the Bloch waves during propagations. In the presence of nonlinearity, rotating lattice solitons from different transmission bands can propagate in a relatively stable manner. However, reduced-symmetry solitons at point X2 cannot easily rotate synchronously with the lattice, owing to Coriolis forces. Moreover, additional angular momenta are added to the off-axis propagating solitons.

为了得到新的传输性质，把具有负介电常数和磁导率的负折射率材料引入到光子晶体当中，运用Maxwell电磁波方程和Bloch理论得到的含正负折射率材料的色散关系的解析式，分别分析一维无限周期且正折射率材料和负折射率材料交替组成的一维光子晶体的禁带结构和色散特性，并与常规的正折射率材料的光子晶体比较，发现含正、负折射率材料且呈周期性重复的双层结构的复合光子晶体其光子具有较宽禁带，为设计超宽禁带的光子带隙结构提供了一定的理论可能性。