Flexibly Steering of Self-Collimation Beam in Two-Dimensional Sonic Crystals

被引：0
|
作者：
Shen, F. [1 ,3 ]
Deng, J. [2 ]
Zhu, Y. [3 ]
机构：
[1] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
[2] Northwestern Polytech Univ, Sch Marine Sci & Technol, Key Lab Ocean Acoust & Sensing, Xian 710072, Peoples R China
[3] Dongguan Univ Technol, Res Inst Interdisciplinary Sci, Dongguan 523808, Peoples R China
来源：
ACOUSTICAL PHYSICS | 2024年 / 70卷 / 02期
基金：
中国国家自然科学基金;
关键词：
beam steering; self-collimation; total internal reflection; sonic crystals; MACH-ZEHNDER INTERFEROMETER; PHONONIC CRYSTAL; WAVES;
D O I：
10.1134/S1063771022600346
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Almost no diffraction broadening of self-collimation beams and their easy crossing with low crosstalk offer new opportunities for acoustic wave manipulation. Here, we flexibly steer the self-collimation beam based on the total internal reflection of an airborne square lattice sonic crystal. The properly designed crystal/air interface may serve well as a total internal reflection mirror of the self-collimation beam, with which we are able to achieve the highly controllable beam reversal, snaking and crossing. Our scheme can be extended to more interesting beam steering, and have potential applications in constructing high-density integrated acoustic circuits.
引用
收藏
页码：270 / 277
页数：8
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