Band Gap and Waveguide States in Two-Dimensional Disorder Phononic Crystals
LI Xiao-Chun1,2 , LIU Zheng-You1 , LIANG Hong-Yu2 , XIAO Qing-Wu2
1 Department of Physics, Wuhan University, Wuhan 430072
2 Department of Physics, Central South University, Changsha 410073
Band Gap and Waveguide States in Two-Dimensional Disorder Phononic Crystals
LI Xiao-Chun1,2 ;LIU Zheng-You1 ;LIANG Hong-Yu2 ;XIAO Qing-Wu2
1 Department of Physics, Wuhan University, Wuhan 430072
2 Department of Physics, Central South University, Changsha 410073
关键词 ：
43.20.+g ,
43.35.+d ,
43.40.+s
Abstract ： The influences of the configurational disorders on phononic band gaps and on waveguide modes are investigated for the two-dimensional phononic crystals consisting of water cylinders periodically arrayed in mercury. Two types of configurational disorders, relevant to the cylinder position and cylinder size respectively, are taken into account. It is found that the phononic band gap and the guide band are sensitive to the disorders, and generally become narrower with the increasing disorders. It is also found that the waveguide side walls without disorder can significantly prevent the guide modes in the waveguide from influence by the disorders in the crystals to a large amount.
Key words ：
43.20.+g
43.35.+d
43.40.+s
出版日期: 2006-07-01
:
43.20.+g
(General linear acoustics)
43.35.+d
(Ultrasonics, quantum acoustics, and physical effects of sound)
43.40.+s
(Structural acoustics and vibration)
引用本文:
LI Xiao-Chun;LIU Zheng-You;LIANG Hong-Yu;XIAO Qing-Wu. Band Gap and Waveguide States in Two-Dimensional Disorder Phononic Crystals[J]. 中国物理快报, 2006, 23(7): 1830-1833.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I7/1830
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2006, Vol. 23 
