Abstract
We investigated the acoustic properties in the sub-GHz frequency regime of a multilayer system comprising alternating 100-nm scale TiO2/poly(methyl methacrylate) (PMMA) layers through a laser photoacoustic method, impulsive stimulated thermal scattering (ISTS). The acoustic dispersion curves were determined, and the mechanical properties were extracted from the experimental results.
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Saini, G., Pezeril, T., Torchinsky, D.H. et al. Pulsed laser characterization of multicomponent polymer acoustic and mechanical properties in the sub-GHz regime. Journal of Materials Research 22, 719–723 (2007). https://doi.org/10.1557/jmr.2007.0081
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DOI: https://doi.org/10.1557/jmr.2007.0081