中国物理B ›› 2005, Vol. 14 ›› Issue (12): 2507-2513.doi: 10.1088/1009-1963/14/12/023
• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇 下一篇
蔡向华, 郑婉华, 马小涛, 任刚, 夏建白
Cai Xiang-Hua (蔡向华), Zheng Wan-Hua (郑婉华), Ma Xiao-Tao (马小涛), Ren Gang (任刚), Xia Jian-Bai (夏建白)
摘要: Using the plane-wave expansion method, we have calculated and analysed the changes of photonic band structures arising from two kinds of deformed lattices, including the stretching and shrinking of lattices. The square lattice with square air holes and the triangular lattice with circular air holes are both studied. Calculated results show that the change of lattice size in some special ranges can enlarge the band gap, which depends strongly on the filling factor of air holes in photonic crystals; and besides, the asymmetric band edges will appear with the broken symmetry of lattices.
中图分类号: (Photonic bandgap materials)