局域共振的光子、声子功能材料

Local resonance induced wave functional materials

介绍一种利用局域共振的原理制造人工光、声子结构材料的方法 .此种方法不同于通常建立在布拉格散射基础上的光、声子晶体能带材料 ,但又表现出与之相同的物理特征 .局域共振光、声子模型的优点是样品制作相对简单 ;不依赖于结构的周期性 ;可制备出亚波长的能隙结构 ,为微波及长波声波能带结构的制造提供了一种十分简便而有效的方法 .

We introduce the methodology for fabricating photonic and phononic band gap materials based on the local resonance mechanism, which is totally different from the Bragg scattering mechanism but leads to wave functional materials with the same physical characteristics. The merits of this approach are (1) the relatively simple fabrication, not requiring periodicity as in the case of conventional photonic and phononic crystals, and (2) the realization of subwavelength band gap materials. The latter is especially important for microwave and acoustic applications.