The investigation of point defect modes of phononic crystal for high Q resonance

	The investigation of point defect modes of phononic crystal for high Q resonance
其他题名	论文其他题名
	Li F.; Liu J.; Wu Y. H.
	2011
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	109 期号:12
摘要	Point defect cavity was constructed in a two-dimensional phononic crystal plate. It was excited by a small piezo chip in the cavity, and the vibrations of each point defect mode were detected by an optical interferometer. Point defect modes on 2D phononic crystal plate in vacuum, air, and with water loaded were investigated theoretically and experimentally. It is shown that the Q factors of the point defect modes are determined by inner attenuation, bandgap effects, and medium. The SSS mode (breathing mode) has highest Q factor in vacuum and air among nine modes thanks to low inner attenuation and low energy leakage. By selectively loading the PC with water on one side, the point defect modes with shear movement surfaces suffer lower attenuation and still have rather high Q factors. These conclusions will help to design a new kind of resonator or sensor. (C) 2011 American Institute of Physics. [doi:10.1063/1.3599866]
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26061
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li F.,Liu J.,Wu Y. H.. The investigation of point defect modes of phononic crystal for high Q resonance[J]. Journal of Applied Physics,2011,109(12).
APA	Li F.,Liu J.,&Wu Y. H..(2011).The investigation of point defect modes of phononic crystal for high Q resonance.Journal of Applied Physics,109(12).
MLA	Li F.,et al."The investigation of point defect modes of phononic crystal for high Q resonance".Journal of Applied Physics 109.12(2011).

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