Acoustic beam splitting in two-dimensional phononic crystals using self-collimation effect

被引：48

作者：

Li, Jing ^{[1
,2
]}

Wu, Fugen ^{[2
]}

Zhong, Huilin ^{[2
]}

Yao, Yuanwei ^{[1
]}

Zhang, Xin ^{[1
]}

机构：

[1] Guangdong Univ Technol, Dept Phys & Optoelect Engn, Guangzhou 510006, Guangdong, Peoples R China

[2] Guangdong Univ Technol, Dept Expt Educ, Guangzhou 510006, Guangdong, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2015年 / 118卷 / 14期

基金：

中国国家自然科学基金;

关键词：

PHOTONIC CRYSTALS;

D O I：

10.1063/1.4932138

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose two models of self-collimation-based beam splitters in phononic crystals. The finite element method is used to investigate the propagation properties of acoustic waves in two-dimensional phononic crystals. The calculated results show that the efficiency of the beam splitter can be controlled systematically by varying the radius of the rods or by changing the orientation of the square rods in the line defect. The effect of changing the side length of the square rods on acoustic wave propagation is discussed. The results show that the total transmission/reflection range decreases/increases as the side length increases. We also find that the relationship between the orientation of the transflective point and the side length of the square rods is quasi-linear. (C) 2015 AIP Publishing LLC.

引用

页数：6

共 43 条

[1] Superlensing effect for surface acoustic waves in a pillar-based phononic crystal with negative refractive index [J].

Addouche, Mahmoud ;

Al-Lethawe, Mohammed A. ;

Choujaa, Abdelkrim ;

Khelif, Abdelkrim .

APPLIED PHYSICS LETTERS, 2014, 105 (02)

[2] Positive, negative, zero refraction, and beam splitting in a solid/air phononic crystal: Theoretical and experimental study [J].

Bucay, J. ;

Roussel, E. ;

Vasseur, J. O. ;

Deymier, P. A. ;

Hladky-Hennion, A-C. ;

Pennec, Y. ;

Muralidharan, K. ;

Djafari-Rouhani, B. ;

Dubus, B. .

PHYSICAL REVIEW B, 2009, 79 (21)

[3] Phononic crystal multi-channel low-frequency filter based on locally resonant unit [J].

Cheng Cong ;

Wu Fu-Gen ;

Zhang Xin ;

Yao Yuan-Wei .

ACTA PHYSICA SINICA, 2014, 63 (02)

[4]

[董华锋 DONG HuaFeng], 2011, [中国科学. 物理学, 力学, 天文学, Scientia Sinica Physica, Mechanica & Astronomica], V41, P775

[5] Subdiffractive propagation of ultrasound in sonic crystals [J].

Espinosa, Victor ;

Sanchez-Morcillo, Victor J. ;

Staliunas, Kestutis ;

Perez-Arjona, Isabel ;

Redondo, Javier .

PHYSICAL REVIEW B, 2007, 76 (14)

[6] Subwavelength imaging of acoustic waves by a canalization mechanism in a two-dimensional phononic crystal [J].

He, Zhaojian ;

Cai, Feiyan ;

Ding, Yiqun ;

Liu, Zhengyou .

APPLIED PHYSICS LETTERS, 2008, 93 (23)

[7] Numerical study of Lamb waves band structure in one-dimensional phononic crystal slabs with the anti-symmetric boundary structure [J].

Huang, Pingping ;

Yao, Yuanwei ;

Wu, Fugen ;

Zhang, Xin .

JOURNAL OF APPLIED PHYSICS, 2014, 115 (06)

[8]

Hussein MI, 2014, APPL MECH REV, V66, DOI 10.1115/1.4026911

[9]

Isabel P. A., 2007, PHYS REV B, V75

[10]

Joannopoulos JD, 2008, PHOTONIC CRYSTALS: MOLDING THE FLOW OF LIGHT, 2ND EDITION, P1

← 1 2 3 4 5 →