Translator Disclaimer
5 April 2017 Acoustic vortex beam generation using a compact metamaterial aperture
Author Affiliations +
We have previously demonstrated an acoustic vortex wave antenna (VWA) based on a metamaterial aperture. This system produced arbitrary angular mode number waveforms,1 but did not produce pure integer mode vortex waves. In this work we extend our previous result to a design which radiates pure integer vortex modes. By combining an acoustic leaky wave antenna with a ring resonator waveguide we produce integer mode acoustic vortex waves. Further, we computationally show that this spatial mode can be transferred between two opposing acoustic vortex wave antenna in a "pitch - catch" configuration.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Charles A. Rohde, Christina J. Naify, Matthew D. Guild, Theodore P. Martin, Jeffrey S. Rogers, David C. Calvo, and Gregory J. Orris "Acoustic vortex beam generation using a compact metamaterial aperture", Proc. SPIE 10170, Health Monitoring of Structural and Biological Systems 2017, 101701I (5 April 2017);

Back to Top