利用传输矩阵理论分析了Fibonacci准周期结构的光子晶体的带隙特性,并讨论了当介质层中含有负折射率介质时光子带隙的特性,分析了该准周期结构频谱的多重分形.研究结果表明,Fibonacci准周期结构的分层介质的光子带隙(PBG)特性,不论其为普通介质还是含负折射率介质,其透射谱具有相似性,且随阶数的增大其不均匀性增加.对广义Fibonacci准周期结构——GF(1,n)和GF(m,1),其透射谱的不均匀性随n和m的增加而增大.
Using transfer-matrix method and multi-fractal theory,we have studied the transmission properties of the one-dimensional Fibonacci structures Fc(l) and the generalized Fibonacci structures GF(m,n),in which m,n different intervals are integer according to a substitution rule.By using a transfer-matrix method,the optical transmission through GF(1,n) and GF(m,1) is obtained.Multi-fractal analysis is employed to characterize the transmission spectra.The transmission spectra of Fibonacci structures have self-similarity and inhomogeneity with the increase of the order.It is demonstrated that the transmission coefficient has a rich structure,which depends on the wavelength of light and the number of different integer m and n.