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
顾仲明, 梁彬, 程建春
Gu Zhong-Ming (顾仲明), Liang Bin (梁彬), Cheng Jian-Chun (程建春)
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.
中图分类号: (Nonlinear acoustics)