中国物理B ›› 2013, Vol. 22 ›› Issue (1): 14303-014303.doi: 10.1088/1674-1056/22/1/014303

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Analytical model of an acoustic diode comprising a superlattice and a nonlinear medium

顾仲明, 梁彬, 程建春   

  1. Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing 210093, China
  • 收稿日期:2012-05-01 修回日期:2012-06-18 出版日期:2012-12-01 发布日期:2012-12-01
  • 基金资助:
    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.

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)   

  1. Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing 210093, China
  • Received:2012-05-01 Revised:2012-06-18 Online:2012-12-01 Published:2012-12-01
  • Contact: Liang Bin E-mail:liangbin@nju.edu.cn
  • Supported by:
    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.

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摘要： 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.

关键词: acoustic diode, transfer-matrix method

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.

Key words: acoustic diode, transfer-matrix method

中图分类号:  (Nonlinear acoustics)

  • 43.25.+y
43.35.+d (Ultrasonics, quantum acoustics, and physical effects of sound)