Acoustic beam splitting at low GHz frequencies in a defect-free phononic crystal

被引：20
|
作者：
Guo, Yuning [1 ]
Brick, Delia [1 ]
Grossmann, Martin [1 ]
Hettich, Mike [1 ]
Dekorsy, Thomas [1 ,2 ]
机构：
[1] Univ Konstanz, Dept Phys, D-78457 Constance, Germany
[2] German Aerosp Ctr, Inst Tech Phys, Pfaffenwaldring 38-40, D-70568 Stuttgart, Germany
来源：
APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 03期
关键词：
SELF-COLLIMATED BEAMS; PHOTONIC CRYSTALS;
D O I：
10.1063/1.4974491
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The directional waveguiding in a 2D phononic crystal is simulated based on the analysis of equifrequency contours. This approach is utilized to investigate acoustic beam splitting in a defectfree nanostructure in the low GHz range. We find relaxed limitations regarding the source parameters compared to similar approaches in the sonic regime. Finally, we discuss the possibility to design an acoustic interferometer device at the nanoscale at GHz frequencies. Published by AIP Publishing.
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页数：4
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