| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Analytical model of an acoustic diode comprising a superlattice and a nonlinear medium |
| Gu Zhong-Ming (顾仲明), Liang Bin (梁彬), Cheng Jian-Chun (程建春) |
| Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing 210093, China |
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Abstract We give an analytical analysis to the acoustic propagation in an acoustic diode (AD) model formed by coupling a superlattice (SL) with a nonlinear medium. Analytical solutions of the acoustic transmission are obtained by studying the propagations in the SL and the nonlinear medium separately with the conventional transfer-matrix method and a perturbation technique. Compared with the previous numerical method, the proposed approach contributes a better physical insight into the intrinsic mechanism of acoustic rectification and helps us to predict the performance of an AD within the effective rectifying bands in a simply way. This is potentially significant for the practical design and fabrication of AD devices.
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Received: 01 May 2012
Revised: 18 June 2012
Accepted manuscript online:
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PACS:
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43.25.+y
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(Nonlinear acoustics)
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43.35.+d
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(Ultrasonics, quantum acoustics, and physical effects of sound)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10904068, 10834009, 11174138, and 11174139), the Research Fund for the Doctoral Program (for new scholar) of Higher Education of China (Grant No. 20100091120039), and the Priority Academic Program Development of Jiangsu Higher Education Institutions, China. |
Corresponding Authors:
Liang Bin
E-mail: liangbin@nju.edu.cn
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Cite this article:
Gu Zhong-Ming (顾仲明), Liang Bin (梁彬), Cheng Jian-Chun (程建春) Analytical model of an acoustic diode comprising a superlattice and a nonlinear medium 2013 Chin. Phys. B 22 014303
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