Optical Generation of Coherent Ultrahigh Frequency Bulk Ultrasonics and Surface Acoustic Waves: Ultrasonic Transmission Studies at Solid-Liquid Helium Interfaces

相干超高频体超声波和表面声波的光学产生：固液氦界面的超声波传输研究

• 批准号: 8605696
• 负责人: R. J. Dwayne Miller
• 金额: $ 25.22万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-09-01 至 1990-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8605696&HistoricalAwards=false
• 关键词: Optical; Generation; Coherent; Ultrahigh; Frequency

Recently developed optical methods of holographically generating coherent ultrasonics will be employed to produce coherent sound waves with extremely high frequencies that are continuously tunable. These features, coupled with the ability to optically inject acoustic probes without mechanical contact, makes the proposed technique well suited for the non-destructive evaluation of materials.

最近发展的全息产生的光学方法 相干超声波将被用来产生相干声波 具有连续可调的极高频率。 这些 功能，加上光学注入声探头的能力， 没有机械接触，使得所提出的技术非常适合 用于材料的非破坏性评估。