Sound-reflecting mirror could amplify contactless energy transfer capabilities
Sound-reflecting mirror could amplify contactless energy transfer capabilities
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声音反射镜可以增强非接触式能量传输能力
DOI：
10.1063/10.0006745
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Lim, Alane
中科院分区：
文献类型：
--
作者：
Lim, Alane
与传统方法相比，他们的镜子输出的声学像素增加了大约70倍，这表明该设备可以更精细地操纵反射声波。研究小组表明，镜子还可以在空间上聚焦这些波，这一点可以从镜子在复杂模式（如花朵形状）中诱导更高压力并在目标区域上构建多焦点的能力中得到证明。“我们首次展示了一种3D打印的金属全息声镜，用于操纵水中反射的超声波，”共同作者Shima Shahab说。“我们设想，镜像概念有可能扩展采用反射声波操纵的关键应用领域。
Their mirror output an approximately 70-fold increase in acoustic pixels compared to conventional methods, suggesting the device can manipulate reflected sound waves more finely. The team showed the mirror could also focus these waves spatially, as evidenced by the mirror’s ability to induce higher pressure in complex patterns such as a flower shape and construct multifocal points onto a target area.“We demonstrated, for the first time, a 3D-printed metallic holographic acoustic mirror for the manipulation of reflected ultrasonic waves in water,” co-author Shima Shahab said.“We envision that the mirroring concept has the potential to extend the realm of critical applications that employ manipulation of reflective acoustic waves.”