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1997
Journal Article
Titel
Novel Optical Method for Detection of Laser-Excited Surface Acoustic Waves
Abstract
A novel contactless laser optoacoustic spectroscopy method is proposed and theoretically substantiated. It is based on laser excitation of intense surface aoustic waves and detection of IR surface radiation associated with temperature variations that accompany the propagation of these waves. The method may prove useful in investigations of ovjects at elevated temperatures and of samples with a rough surface.