本文以不锈钢管正方形排列在空气中形成的二维声子晶体为对象,使用平面波展开法计算并通过实验测试的方法,分析了该二维声子晶体的声波禁带,讨论了晶格常数对声波禁带的影响.结果表明,随着晶格常数的减小,ΓX方向禁带宽度增加,禁带上下边界频率增大.
参考文献
| [1] | M M Sigalas;E N Economou .Elastic and acoustic wave band structure[J].Journal of Sound and Vibration,1992,2(02):158377. |
| [2] | M S Kushwaha;P. Halevi;L. Dobrzynski;B. Djafarirouhani .Acoustic Band-structure of periodic elastic composites[J].Physical Review Letters,1993,71(13):2022-2025. |
| [3] | E Yablonovitch .Inhibited spontaneous emission in solid-state physics and electronics[J].Physical Review Letters,1987,58(20):2059-2062. |
| [4] | 快素兰,章俞之,胡行方.光子晶体的能带结构、潜在应用和制备方法[J].无机材料学报,2001(02):193-199. |
| [5] | Sigalas MM. .Defect states of acoustic waves in a two-dimensional lattice of solid cylinders[J].Journal of Applied Physics,1998(6):3026-3030. |
| [6] | Torres M.;Garcia-Pablos D.;Garcia N.;de Espinosa FRM. .Sonic band gaps in finite elastic media: Surface states and localization phenomena in linear and point defects[J].Physical review letters,1999(15):3054-3057. |
| [7] | M. M. Sigalas .Elastic wave band gaps and defect states in two-dimensional composites[J].The Journal of the Acoustical Society of America,1997(3):1256-1261. |
| [8] | Fugen Wu;Zhilin Hou;Zhengyou Liu et al.Point defect states in two-dimensional phononic crystals[J].Physics Letters A,2001,292:198-202. |
| [9] | 赵宏刚,韩小云,温激鸿,王刚.新型声学功能材料--声子晶体[J].材料科学与工程学报,2003(01):153-156. |
| [10] | R Martinez-Sala;J. Sancho;F. Meseguer et al.Sound attenuation by sculpture[J].Nature,1995,378(16):241. |
| [11] | J V Sanche-Perez;D. Caballero;R. Martinez-Sala;C. Rubio, J. Sanchez-Dehesa .Sound Attenuation by Two-Dimensional Array of Rigid Cylinders[J].Physical Review Letters,1998,80:5325-5328. |
| [12] | 杜功焕.声学基础[M].上海:上海科技教育出版社,1981:204-210. |
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