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- Title
Acoustic Oscillations of Aluminum Membranes Laser-Excited by a Thermoelastic Mechanism.
- Authors
Glazov, A. L.; Muratikov, K. L.
- Abstract
A theoretical model of photoacoustic response signal formation from laser-irradiated metal membranes is proposed with allowance for the excitation of defect states. Theoretical results obtained for 197-μm-thick aluminum membranes in a frequency range from 20 Hz to 7 kHz are compared to experimental data for membranes excited by laser radiation at a 660-nm wavelength. The proposed theoretical model provides quite adequate coincidence with experiment for membrane oscillations under the assumption of a purely surface character of laser radiation absorption.
- Subjects
LASER beams; OSCILLATIONS; RADIATION absorption; ALUMINUM; PHOTOACOUSTIC spectroscopy; ALUMINUM films; COINCIDENCE
- Publication
Technical Physics Letters, 2020, Vol 46, Issue 5, p477
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/S1063785020050223