Enhancement of ultrasonic transmission using a patch patterned with single-sided periodic gratings

被引：3
|
作者：
Zhou, Qinxin [1 ]
Xu, Wei [2 ]
Xue, Lei [3 ,4 ]
Xu, Zheng [1 ]
Cheng, Liming [2 ]
机构：
[1] Tongji Univ, Inst Acoust, Shanghai 200092, Peoples R China
[2] Tongji Univ, Tongji Hosp, Dept Spine Surg, Sch Med, Shanghai 200065, Peoples R China
[3] Fudan Univ, Sch Life Sci, Dept Physiol & Biophys, State Key Lab Med Neurobiol, Shanghai 200438, Peoples R China
[4] Fudan Univ, Collaborat Innovat Ctr Brain Sci, Shanghai 200438, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2019年 / 126卷 / 16期
基金：
中国国家自然科学基金;
关键词：
COEFFICIENT; WAVES; SOUND;
D O I：
10.1063/1.5119734
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report that the transmission of incident ultrasonic waves through an impedance-mismatched brass plate can be drastically enhanced by single-sided periodic gratings. Using Schlieren imaging, we experimentally demonstrated the phenomenon of extraordinary acoustic transmission through the stiff, structured plate. Using a numerical model, we revealed that this phenomenon arises from the resonant excitation of the intrinsic A(0) mode in this structure. We discussed the possible application of this structure as a patch to enhance ultrasound transmission in medical instruments. Published under license by AIP Publishing.
引用
收藏
页数：6
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