Zeng Yong, Fu Ying, Chen Xiaoshuang, Lu Wei, Agren Hans
Department of Theoretical Chemistry, Royal Institute of Technology, S-106 91 Stockholm, Sweden.
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Jun;73(6 Pt 2):066625. doi: 10.1103/PhysRevE.73.066625. Epub 2006 Jun 29.
By an extended plane-wave-based transfer-matrix method, the photonic band structure and the corresponding transmission spectrum have been calculated for a two-dimensional photonic crystal composed of negative-phase-velocity-medium (NPVM) cylindrical rods. Dispersionless anticrossing bands in the two-dimensional NPVM periodic structure are generated by the couplings among surface polaritons localized in the NPVM rods. In part of the negative-phase-velocity frequency region, the photonic band structures of the NPVM photonic crystal are characterized by a topographical continuous dispersion relationship accompanied by many anticrossing bands. The effect of the filling fraction of the NPVM rods on the optical properties of photonic crystals has also been studied.
通过基于扩展平面波的传输矩阵方法，计算了由负相速度介质（NPVM）圆柱棒组成的二维光子晶体的光子带结构和相应的透射谱。二维NPVM周期结构中无色散的反交叉带是由NPVM棒中局域的表面极化激元之间的耦合产生的。在部分负相速度频率区域，NPVM光子晶体的光子带结构的特征是具有许多反交叉带的地形连续色散关系。还研究了NPVM棒的填充率对光子晶体光学性质的影响。
