期刊
APPLIED PHYSICS LETTERS
卷 98, 期 8, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3562306
关键词
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资金
- National Natural Science Foundation of China [10874131, 10731160613, 50702038, 10974147]
- Doctoral Research Foundation of Ministry of Education of China [20090141120073]
The unidirectional transmission of acoustic waves is realized by a simple geometrically asymmetric steel grating structure. This exotic phenomenon stems from the one-way diffraction effect induced by the different periods of the slits on the both surfaces of the sample. And the frequency range of unidirectional transmission is simply determined by the structure periods. The experimental results agree well with the theoretical simulation. This remarkable effect is expected potential applications in ultrasonic devices, such as acoustic rectifiers and acoustic diodes. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3562306]
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