利用三维声晶体形成准直声束
Formation of collimated sound beams by three-dimensional sonic crystals
摘要：
本文从理论和实验两方面研究了声束在三维声波晶体中和晶体后的传播。一个有效的准直晶体后面的光束的预测和实验证明。这种效应可以允许设计高空间质量声束的源。
英文摘要：
A theoretical and experimental study of the propagation of sound beams in- and behind three-dimensional sonic crystals at frequencies close to the band edges is presented. An efficient collimation of the beam behind the crystal is predicted and experimentally demonstrated. This effect could allow the design of sources of high spatial quality sound beams.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
