journal6 ›› 2005, Vol. 26 ›› Issue (1): 76-79.

• Key disciplines • Previous Articles     Next Articles

Band Gap Calculation for Two-Dimensional Solid Phononic Crystals with Square Lattices


  1. (1.Faculty of Material Science and Photoelectronic Physics,Xiangtan University,Xiangtan,411105,Hunan China; 2.College of Physics Science and Information Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2005-01-15 Published:2012-09-22

Abstract: The study of phononic crystals band gap will not only give rise to a new interesting theory,but also open up variety of possible application.The plane wave expansion method is introduced to calculate the band gap for two-dimensional solid phononic crystals with square lattices.The effects of different shapes of the scatterers’ section on band gaps are investigated.The calculated results show that when the scatterers’ filling fraction F<0.5,the circular section is easier to attain large band gaps than the square section and rectangle one;while when F>0.5,the square section is more favorable for the appearance of the band gaps.

Key words: phononic crystals, band gap, square lattice, plane wave expansion method

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