Broadband detection of laser‐excited surface acoustic waves by a novel transducer employing ferroelectric polymers. Coufal, H., Grygier, R., Hess, P., & Neubrand, A. The Journal of the Acoustical Society of America, 92(5):2980–2983, November, 1992.
Broadband detection of laser‐excited surface acoustic waves by a novel transducer employing ferroelectric polymers [link]Paper  doi  abstract   bibtex   
Broadband detection (150‐MHz range) of surface acoustic wave transients excited by absorption of ps laser pulses in the sample under study is demonstrated. A novel transducer employing a ferroelectricpolymer foil as piezoelectric sensor is described. In a silicon single crystal the width of the observed acoustic pulses was limited to 4 ns by the spatial resolution of pulse generation and detection. In the polycrystalline materials under study the minimum observable pulse width was determined by materials properties. Accurate values for the phase velocity of surface acoustic wave propagation are given for silicon, aluminum, steel, copper, and brass.
@article{coufal_broadband_1992,
	title = {Broadband detection of laser‐excited surface acoustic waves by a novel transducer employing ferroelectric polymers},
	volume = {92},
	issn = {0001-4966},
	url = {http://scitation.aip.org/content/asa/journal/jasa/92/5/10.1121/1.404363},
	doi = {10.1121/1.404363},
	abstract = {Broadband detection (150‐MHz range) of surface acoustic wave transients excited by absorption of ps laser pulses in the sample under study is demonstrated. A novel transducer employing a ferroelectricpolymer foil as piezoelectric sensor is described. In a silicon single crystal the width of the observed acoustic pulses was limited to 4 ns by the spatial resolution of pulse generation and detection. In the polycrystalline materials under study the minimum observable pulse width was determined by materials properties. Accurate values for the phase velocity of surface acoustic wave propagation are given for silicon, aluminum, steel, copper, and brass.},
	number = {5},
	urldate = {2015-06-30TZ},
	journal = {The Journal of the Acoustical Society of America},
	author = {Coufal, Hans and Grygier, Robert and Hess, Peter and Neubrand, Achim},
	month = nov,
	year = {1992},
	keywords = {Acoustic sensing, Ferroelectric transducers, Materials properties, piezoelectric transducers, surface acoustic waves},
	pages = {2980--2983}
}

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