Self-collimation of Ultrasonic Waves in a Two-dimensional Prism-shaped Phononic Crystal

被引：1
作者：
Hwi Suk Kang
Kang Il Lee
机构：
[1] Kangwon National University,Department of Physics
来源：
Journal of the Korean Physical Society | 2020年 / 77卷
关键词：
Acoustic metamaterial; Phononic crystal; Band structure; Negative refraction; Self-collimation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The self-collimation of ultrasonic waves in a two-dimensional prism-shaped phononic crystal (PC) with a square lattice immersed in water was theoretically and experimentally investigated. The acoustic pressure fields at the frequencies of the first and the second pass bands were calculated with and without the PC in the acoustic path by using the finite element method. The normalized pressure distributions of the ultrasonic waves transmitted through water only and through the PC were theoretically and experimentally obtained along the direction perpendicular to the beam axis. We demonstrated self-collimation and directivity enhancement of the ultrasonic waves in the two-dimensional prism-shaped PC.
引用
收藏
页码：510 / 514
页数：4
相关论文
共 60 条
[1]  
Kshetrimayum R S(2004)undefined IEEE Potentials 23 44-undefined
[2]  
Leung K M(1990)undefined Phys. Rev. Lett. 65 2646-undefined
[3]  
Liu Y F(1991)undefined Phys. Rev. Lett. 67 2295-undefined
[4]  
Yablonovitch E(1996)undefined Nature 383 699-undefined
[5]  
Gmitter T J(2000)undefined Phys. Rev. B 62 10696-undefined
[6]  
Leung K M(1998)undefined Phys. Rev. Lett. 80 960-undefined
[7]  
Krauss T F(1994)undefined Phys. Rev. B 49 2313-undefined
[8]  
Richard M(1999)undefined Phys. Rev. Lett. 82 3054-undefined
[9]  
Brand S(2012)undefined J. Appl. Phys. 111 034907-undefined
[10]  
Notomi M(2005)undefined Phys. Rev. E 71 036607-undefined
123456