Laser Generation of “Directed” Ultrasound in Solids Using Spatial and Temporal Beam Modulation
Date
Authors
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Authors
Research Projects
Organizational Units
Journal Issue
Is Version Of
Versions
Series
Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
Department
Abstract
Laser based methods for generation and detection of ultrasound are well established laboratory tools[1]. Since only beams of light interact with the surface of an object, laser ultrasonic methods are potentially non-contacting and remote and may be used in applications involving hazardous environments or unusual component geometries. However, for use in the field as a nondestructive testing tool, or in the factory as a sensor for process control, laser ultrasonic methods suffer by comparison with more conventional contact transducer techniques with regard to their generation efficiency and sensitivity. In an effort to improve the overall sensitivity of laser ultrasonic systems, schemes for temporally and spatially modulating the laser generation source have been investigated