Abstract
A modification of the optical technique of impulsive stimulated thermal scattering that allows real-time data acquisition is introduced. The method is used to characterize the pseudo-Rayleigh acoustic modes of thin (∼1 μm) polyimide films attached to silicon substrates and its potential use as a means for extracting the elastic constants of thin-film coatings is demonstrated.
Original language | English (US) |
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Pages (from-to) | 2823-2839 |
Number of pages | 17 |
Journal | Journal of Applied Physics |
Volume | 72 |
Issue number | 7 |
DOIs | |
State | Published - Dec 1 1992 |
ASJC Scopus subject areas
- Physics and Astronomy(all)