Three-Dimensional Imaging Using Spherical Ultrasound Wave Generated by Laser-Induced Breakdown
Three-Dimensional Imaging Using Spherical Ultrasound Wave Generated by Laser-Induced Breakdown
复制标题
使用激光诱导击穿产生的球形超声波进行三维成像
DOI：
10.1143/jjap.40.3877
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发表时间：
2001
影响因子：
1.5
通讯作者：
Kawada Satoshi
中科院分区：
文献类型：
--
作者：
Y. Yasumuro;Atsunori Machida;M. Doi;O. Oshiro;K. Chihara;D. Ueda;T. Sugiura;Kawada Satoshi
在本文中，我们提出了超声（US）三维（3D）成像的新框架，引入激光诱导击穿（LIB）作为声源。 LIB是一种物质通过脉冲激光束转变为等离子体的现象。锂离子电池爆炸性地释放出各种能量，如热、光和声音，其中还包括脉冲超声波。发射的 US 波具有适合 US 3D 成像的低方向性特性，可实现宽视野和尖锐的脉冲波。利用这些特性，我们尝试将合成孔径方法应用于实时正面 3D 成像。实验结果表明，即使是稀疏排列的传感器也能提供比使用现有传感器的情况更宽的正面视图。
In this paper, we propose a new framework of ultrasonic (US) three-dimensional (3D) imaging, introducing laser-induced breakdown (LIB) as an acoustic source. LIB is a phenomenon in which a substance is transformed to a plasma by a pulsed laser beam. LIB explosively emits a variety of energies such as heat, light and sound which also includes pulsed ultrasound. Emitted US waves have suitable characteristics for US 3D imaging in terms of low directivity, enabling a wide view and sharply pulsed waves. Utilizing these characteristics, we attempt to apply the synthetic aperture method for frontal 3D imaging in a real-time process. Experimental results show that even sparsely arrayed sensors allow a wider frontal view than that allowed in the case using existing transducers.