中文摘要：

近几年来，人们对可调谐光子晶体的兴趣日益增长，并且实际光子器件的应用推动着动态调谐方法的进一步发展。本文主要从光子带隙晶体的调谐机制、调谐途径、所用材料等方面，综述了可调谐光子晶体的研究进展。系统介绍了利用外部应力、电场、磁场、温度等激励，控制晶体结构参数的变化，实现光子带隙的改变；还介绍了通过控制介电材料来改变光子带隙，主要介绍了液晶材料、电光材料等几种常用的材料。比较了不同调谐方法的特点。最后分析了光子晶体带隙调谐的进一步研究方向。

英文摘要：

Tunable photonic crystals （PC） draw rapidly growing interests in recent years. Practical applications in photonic devices provide a strong motivation to further development of dynamic tenability. The current progresses on tunable photonic crystal are reviewed from the aspects of the approaches, mechanisms, and materials. The tenability of photonic band gap on the condition of the change of the crystals structure parameters is described in details by utilizing the external force, electric field, magnetic field, and so on. The researches of changing the average refractive index of materials to control the band gap are also introduced, among which liquid crystal materials and electro-optic materials are mainly described. The advantages of different tunable methods are compared. Finally, the perspectives of the future research are briefly predicted.