Presidential Young Investigator Award: Acoustic Transductionwith Laser Beams

该项目关注光声学的研究，专注于基础和新应用，并强调实验工作。本活动包括三个主题，包括光学和光电子学在声学中的应用，用于测量表面法向和切向微振动的光纤设备的开发，以及室外声音传播。第一个主题涉及布拉格小室声光调制在材料中产生超声波的激光产生中的应用。这种非接触式的声音产生方法在环境太热或辐射太强的地方很有吸引力。第二个研究课题的结果预计将提供有关流体/结构相互作用的声辐射控制机制的信息。第三个主题是关于不规则地形的声绕射的模拟。它可能会在机场附近的环境声学和噪音中得到应用。

The project is concerned with research in optoacoustics, focuses on both fundamental and novel applications, and emphasizes experimental work. Three topics are covered in this activity and include optics and optoelectronics applications in acoustics, development of fiber optics devices to measure normal and tangential micro-vibrations on surfaces, and outdoor sound propagation. The first topic involves the applications of acousto-optic light modulation with Bragg cells to the laser generation of ultrasound in materials. This non-contact method of sound generation is attractive where the environment is either too hot or radioactive. The second research topic's outcome is expected to provide information on the mechanisms controlling sound radiation from fluid/structure interactions. The third topic is concerned with the modeling of sound diffraction from irregular topography. It may find applications in environmental acoustics and noise near airports.