Band Gap and Waveguide States in Two-Dimensional Disorder Phononic Crystals

LI Xiao-Chun; LIU Zheng-You; LIANG Hong-Yu; XIAO Qing-Wu

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Band Gap and Waveguide States in Two-Dimensional Disorder Phononic Crystals

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@@ 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 conflgurational 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.

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《中国物理快报：英文版》 |2006年第7期|1830-1833|共4页
作者
LI Xiao-Chun; LIU Zheng-You; LIANG Hong-Yu; XIAO Qing-Wu;
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Department of Physics, Wuhan University, Wuhan 430072;

Department of Physics, Central South University, Changsha 410073;

Department of Physics, Wuhan University, Wuhan 430072;

Department of Physics, Central South University, Changsha 410073;

Department of Physics, Central South University, Changsha 410073;

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正文语种 chi
中图分类物理学;
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Band Gap and Waveguide States in Two-Dimensional Disorder Phononic Crystals

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